diff --git a/img/axial flux motor.webp b/img/axial flux motor.webp
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diff --git a/img/booby trap.webp b/img/booby trap.webp
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diff --git a/img/brushless motor.webp b/img/brushless motor.webp
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diff --git a/img/combinatorial optimization.webp b/img/combinatorial optimization.webp
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diff --git a/img/corona discharge.webp b/img/corona discharge.webp
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diff --git a/img/extruder.webp b/img/extruder.webp
index eb14af0..5202142 100644
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diff --git a/img/gun/mine.webp b/img/gun/mine.webp
index 6f5e0e5..4a2304e 100644
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diff --git a/img/plasma ball.webp b/img/plasma ball.webp
index b705d71..a2a692f 100644
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diff --git a/img/refractory metal.webp b/img/refractory metal.webp
index 596e82a..c44f3e2 100644
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diff --git a/img/ricochet.webp b/img/ricochet.webp
index f970b30..5863d22 100644
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diff --git a/img/sentry.webp b/img/sentry.webp
index eac727d..a9cfb29 100644
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diff --git a/img/stress concentration.webp b/img/stress concentration.webp
index 67b9722..92b1806 100644
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diff --git a/img/tokamak.webp b/img/tokamak.webp
index c9e4096..4a37b66 100644
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diff --git a/index.html b/index.html
index 81d2c53..d631787 100644
--- a/index.html
+++ b/index.html
@@ -70,12 +70,15 @@
                     <label for="seed" title="the randoms seed determines level order, tech choices, and mob types">randomization seed:</label>
                     <input type="text" id="seed" name="seed" autocomplete="off" spellcheck="false" minlength="1" style="width: 120px;">
                     <br>
-                    <label for="hide-images" title="hide images for fields, guns, and tech">hide images:</label>
-                    <input onclick="build.showImages('settings')" type="checkbox" id="hide-images" name="hide-images" style="width:17px; height:17px;">
-                    <br>
                     <span id="previous-seed" style="color:#bbb"></span>
-                    <label for="community-maps" title="add about 12 player made levels the random n-gon level pool">include community maps:</label>
+                    <input onclick="build.showImages('settings')" type="checkbox" id="hide-images" name="hide-images" style="width:17px; height:17px;">
+                    <label for="hide-images" title="hide images for fields, guns, and tech">hide images</label>
+                    <br>
+                    <input onclick="build.hideHUD('settings')" type="checkbox" id="hide-hud" name="hide-hud" style="width:17px; height:17px;">
+                    <label for="hide-hud" title="hide: tech, defense, damage, in game console">minimal HUD</label>
+                    <br>
                     <input type="checkbox" id="community-maps" name="community-maps" style="width:17px; height:17px;">
+                    <label for="community-maps" title="add about 12 player made levels the random n-gon level pool">community maps</label>
 
                     <!-- <br>
 					<label for="body-damage" title="allow damage from the ground and large fast moving blocks">collision damage from blocks:</label>
diff --git a/js/bullet.js b/js/bullet.js
index 53c7365..9757f74 100644
--- a/js/bullet.js
+++ b/js/bullet.js
@@ -333,8 +333,8 @@ const b = {
         // ctx.fill();
 
         simulation.drawList.push({ //add dmg to draw queue
-            x: m.pos.x + 35 * Math.cos(m.angle),
-            y: m.pos.y + 35 * Math.sin(m.angle),
+            x: m.pos.x + 20 * Math.cos(m.angle),
+            y: m.pos.y + 20 * Math.sin(m.angle),
             radius: radius,
             color: "#fb0",
             time: 1
@@ -1747,9 +1747,14 @@ const b = {
                                         x: player.velocity.x * 0.8,
                                         y: player.velocity.y * 0.8
                                     });
-                                    const pull = Vector.mult(Vector.normalise(sub), 0.0008 * Math.min(Math.max(15, dist), 200))
-                                    player.force.x += pull.x
-                                    player.force.y += pull.y
+
+
+                                    //need to scale the friction differently based on distance?
+                                    if (dist > 500) {
+                                        const pull = Vector.mult(Vector.normalise(sub), 0.0008 * Math.min(Math.max(15, dist), 200))
+                                        player.force.x += pull.x
+                                        player.force.y += pull.y
+                                    }
 
                                     if (dist > 500) {
                                         m.energy -= this.drain
@@ -1806,6 +1811,321 @@ const b = {
         });
         Composite.add(engine.world, bullet[me]); //add bullet to world
     },
+    // grapple(where, angle = m.angle, harpoonSize = 1) {
+    //     const me = bullet.length;
+    //     const returnRadius = 100 * Math.sqrt(harpoonSize)
+    //     bullet[me] = Bodies.fromVertices(where.x, where.y, [{
+    //         x: -50 * harpoonSize,
+    //         y: 2 * harpoonSize,
+    //         index: 0,
+    //         isInternal: false
+    //     }, {
+    //         x: -50 * harpoonSize,
+    //         y: -2 * harpoonSize,
+    //         index: 1,
+    //         isInternal: false
+    //     }, {
+    //         x: 45 * harpoonSize,
+    //         y: -3 * harpoonSize,
+    //         index: 2,
+    //         isInternal: false
+    //     }, {
+    //         x: 50 * harpoonSize,
+    //         y: 0,
+    //         index: 3,
+    //         isInternal: false
+    //     }, {
+    //         x: 45 * harpoonSize,
+    //         y: 3 * harpoonSize,
+    //         index: 4,
+    //         isInternal: false
+    //     }], {
+    //         angle: angle,
+    //         friction: 1,
+    //         frictionAir: 0.4,
+    //         thrustMag: 0.1,
+    //         dmg: 6, //damage done in addition to the damage from momentum
+    //         classType: "bullet",
+    //         endCycle: simulation.cycle + 70,
+    //         collisionFilter: {
+    //             category: cat.bullet,
+    //             mask: tech.isShieldPierce ? cat.body | cat.mob | cat.mobBullet : cat.body | cat.mob | cat.mobBullet | cat.mobShield,
+    //         },
+    //         minDmgSpeed: 4,
+    //         lookFrequency: Math.floor(7 + Math.random() * 3),
+    //         density: tech.harpoonDensity, //0.001 is normal for blocks,  0.004 is normal for harpoon,  0.004*6 when buffed
+    //         drain: tech.isRailEnergy ? 0.0006 : 0.006,
+    //         beforeDmg(who) {
+    //             if (tech.isShieldPierce && who.isShielded) { //disable shields
+    //                 who.isShielded = false
+    //                 requestAnimationFrame(() => {
+    //                     who.isShielded = true
+    //                 });
+    //             }
+    //             if (tech.fragments) {
+    //                 b.targetedNail(this.vertices[2], tech.fragments * Math.floor(2 + Math.random()))
+    //             }
+    //             if (tech.isFoamBall) {
+    //                 for (let i = 0, len = 4 * this.mass; i < len; i++) {
+    //                     const radius = 5 + 8 * Math.random()
+    //                     const velocity = {
+    //                         x: Math.max(0.5, 2 - radius * 0.1),
+    //                         y: 0
+    //                     }
+    //                     b.foam(this.position, Vector.rotate(velocity, 6.28 * Math.random()), radius)
+    //                 }
+    //                 // this.endCycle = 0;
+    //             }
+    //         },
+    //         caughtPowerUp: null,
+    //         dropCaughtPowerUp() {
+    //             if (this.caughtPowerUp) {
+    //                 this.caughtPowerUp.collisionFilter.category = cat.powerUp
+    //                 this.caughtPowerUp.collisionFilter.mask = cat.map | cat.powerUp
+    //                 this.caughtPowerUp = null
+    //             }
+    //         },
+    //         onEnd() {
+    //             if (this.caughtPowerUp && !simulation.isChoosing && (this.caughtPowerUp.name !== "heal" || m.health !== m.maxHealth || tech.isOverHeal)) {
+    //                 let index = null //find index
+    //                 for (let i = 0, len = powerUp.length; i < len; ++i) {
+    //                     if (powerUp[i] === this.caughtPowerUp) index = i
+    //                 }
+    //                 if (index !== null) {
+    //                     powerUps.onPickUp(this.caughtPowerUp);
+    //                     this.caughtPowerUp.effect();
+    //                     Matter.Composite.remove(engine.world, this.caughtPowerUp);
+    //                     powerUp.splice(index, 1);
+    //                     if (tech.isHarpoonPowerUp) tech.harpoonDensity = 0.004 * 6 //0.005 is normal
+    //                 } else {
+    //                     this.dropCaughtPowerUp()
+    //                 }
+    //             } else {
+    //                 this.dropCaughtPowerUp()
+    //             }
+    //         },
+    //         draw() {
+    //             const where = {
+    //                 x: m.pos.x + 30 * Math.cos(m.angle),
+    //                 y: m.pos.y + 30 * Math.sin(m.angle)
+    //             }
+    //             const sub = Vector.sub(where, this.vertices[0])
+    //             const controlPoint = Vector.add(where, Vector.mult(sub, -0.5))
+    //             ctx.strokeStyle = "#000" // "#0ce"
+    //             ctx.lineWidth = 0.5
+    //             ctx.beginPath();
+    //             ctx.moveTo(where.x, where.y);
+    //             ctx.quadraticCurveTo(controlPoint.x, controlPoint.y, this.vertices[0].x, this.vertices[0].y)
+    //             // ctx.lineTo(this.vertices[0].x, this.vertices[0].y);
+    //             ctx.stroke();
+    //             //draw harpoon spikes
+    //             const spikeLength = 2
+    //             ctx.beginPath();
+    //             const spike1 = Vector.add(this.vertices[1], Vector.mult(Vector.sub(this.vertices[1], this.vertices[2]), spikeLength))
+    //             ctx.moveTo(this.vertices[2].x, this.vertices[2].y);
+    //             ctx.lineTo(spike1.x, spike1.y);
+    //             ctx.lineTo(this.vertices[3].x, this.vertices[3].y);
+
+    //             const spike2 = Vector.add(this.vertices[3], Vector.mult(Vector.sub(this.vertices[3], this.vertices[2]), spikeLength))
+    //             ctx.moveTo(this.vertices[2].x, this.vertices[2].y);
+    //             ctx.lineTo(spike2.x, spike2.y);
+    //             ctx.lineTo(this.vertices[1].x, this.vertices[1].y);
+    //             ctx.fillStyle = '#000'
+    //             ctx.fill();
+    //         },
+    //         returnToPlayer() {
+    //             if (Vector.magnitude(Vector.sub(this.position, m.pos)) < returnRadius) { //near player
+    //                 this.endCycle = 0;
+    //                 // if (m.energy < 0.05) {
+    //                 //     m.fireCDcycle = m.cycle + 120; //fire cooldown
+    //                 // } else if (m.cycle + 15 * b.fireCDscale < m.fireCDcycle) {
+    //                 //     m.fireCDcycle = m.cycle + 15 * b.fireCDscale //lower cd to 25 if it is above 25
+    //                 // }
+
+    //                 if (m.energy < 0.05) this.dropCaughtPowerUp()
+
+    //                 //recoil on catching
+    //                 const momentum = Vector.mult(Vector.sub(this.velocity, player.velocity), (m.crouch ? 0.0001 : 0.0002))
+    //                 player.force.x += momentum.x
+    //                 player.force.y += momentum.y
+    //                 // refund ammo
+    //                 b.guns[9].ammo++;
+    //                 simulation.updateGunHUD();
+
+    //                 // for (i = 0, len = b.guns.length; i < len; i++) { //find which gun 
+    //                 //     if (b.guns[i].name === "harpoon") {
+    //                 //         b.guns[i].ammo++;
+    //                 //         simulation.updateGunHUD();
+    //                 //         break;
+    //                 //     }
+    //                 // }
+    //             } else {
+    //                 if (m.energy > this.drain) m.energy -= this.drain
+    //                 const sub = Vector.sub(this.position, m.pos)
+    //                 const rangeScale = 1 + 0.000001 * Vector.magnitude(sub) * Vector.magnitude(sub) //return faster when far from player
+    //                 const returnForce = Vector.mult(Vector.normalise(sub), rangeScale * this.thrustMag * this.mass)
+    //                 this.force.x -= returnForce.x
+    //                 this.force.y -= returnForce.y
+    //                 this.grabPowerUp()
+    //             }
+    //             this.draw();
+    //         },
+    //         grabPowerUp() { //grab power ups near the tip of the harpoon
+    //             if (this.caughtPowerUp) {
+    //                 Matter.Body.setPosition(this.caughtPowerUp, Vector.add(this.vertices[2], this.velocity))
+    //                 Matter.Body.setVelocity(this.caughtPowerUp, {
+    //                     x: 0,
+    //                     y: 0
+    //                 })
+    //             } else { //&& simulation.cycle % 2 
+    //                 for (let i = 0, len = powerUp.length; i < len; ++i) {
+    //                     const radius = powerUp[i].circleRadius + 50
+    //                     if (Vector.magnitudeSquared(Vector.sub(this.vertices[2], powerUp[i].position)) < radius * radius) {
+    //                         if (powerUp[i].name !== "heal" || m.health !== m.maxHealth || tech.isOverHeal) {
+    //                             this.caughtPowerUp = powerUp[i]
+    //                             Matter.Body.setVelocity(powerUp[i], {
+    //                                 x: 0,
+    //                                 y: 0
+    //                             })
+    //                             Matter.Body.setPosition(powerUp[i], this.vertices[2])
+    //                             powerUp[i].collisionFilter.category = 0
+    //                             powerUp[i].collisionFilter.mask = 0
+    //                             this.thrustMag *= 0.6
+    //                             this.endCycle += 0.5 //it pulls back slower, so this prevents it from ending early
+    //                             break //just pull 1 power up if possible
+    //                         }
+    //                     }
+    //                 }
+    //             }
+    //         },
+    //         do() {
+    //             if (input.fire) { //&& !Matter.Query.collides(this, body).length
+    //                 this.grabPowerUp()
+    //                 if (this.endCycle < simulation.cycle + 1) { //if at end of lifespan, but player is holding down fire, force retraction
+    //                     this.endCycle = simulation.cycle + 60
+    //                     // m.fireCDcycle = m.cycle + 120 // cool down
+    //                     this.do = this.returnToPlayer
+    //                     Matter.Body.setDensity(this, 0.0005); //reduce density on return
+    //                     if (this.angularSpeed < 0.5) this.torque += this.inertia * 0.001 * (Math.random() - 0.5) //(Math.round(Math.random()) ? 1 : -1)
+    //                     this.collisionFilter.mask = cat.map | cat.mob | cat.mobBullet | cat.mobShield // | cat.body
+    //                 }
+    //             } else {
+    //                 //if not enough energy
+    //                 if (m.energy < 0.05) this.dropCaughtPowerUp()
+    //                 //     const returnForce = Vector.mult(Vector.normalise(Vector.sub(this.position, m.pos)), 3 * this.thrustMag * this.mass)
+    //                 //     this.force.x -= returnForce.x
+    //                 //     this.force.y -= returnForce.y
+    //                 //     this.frictionAir = 0.002
+    //                 //     this.do = () => {
+    //                 //         if (this.speed < 20) this.force.y += 0.0005 * this.mass;
+    //                 //     }
+
+    //                 // } else {
+    //                 //return to player
+    //                 this.do = this.returnToPlayer
+    //                 this.endCycle = simulation.cycle + 60
+    //                 Matter.Body.setDensity(this, 0.0005); //reduce density on return
+    //                 if (this.angularSpeed < 0.5) this.torque += this.inertia * 0.001 * (Math.random() - 0.5) //(Math.round(Math.random()) ? 1 : -1)
+    //                 this.collisionFilter.mask = cat.map | cat.mob | cat.mobBullet | cat.mobShield // | cat.body
+    //                 //recoil on catching
+    //                 const momentum = Vector.mult(Vector.sub(this.velocity, player.velocity), (m.crouch ? 0.0001 : 0.0002))
+    //                 player.force.x += momentum.x
+    //                 player.force.y += momentum.y
+    //                 // }
+    //             }
+    //             //grappling hook
+    //             if (input.fire && Matter.Query.collides(this, map).length) {
+    //                 Matter.Body.setPosition(this, Vector.add(this.position, {
+    //                     x: 20 * Math.cos(this.angle),
+    //                     y: 20 * Math.sin(this.angle)
+    //                 }))
+    //                 if (Matter.Query.collides(this, map).length) {
+    //                     Matter.Body.setVelocity(this, {
+    //                         x: 0,
+    //                         y: 0
+    //                     });
+    //                     Matter.Sleeping.set(this, true)
+    //                     this.endCycle = simulation.cycle + 5
+    //                     this.dropCaughtPowerUp()
+    //                     this.do = () => {
+    //                         //between player nose and the grapple
+    //                         const sub = Vector.sub(this.vertices[0], {
+    //                             x: m.pos.x + 30 * Math.cos(m.angle),
+    //                             y: m.pos.y + 30 * Math.sin(m.angle)
+    //                         })
+    //                         let dist = Vector.magnitude(sub)
+    //                         if (input.fire) {
+    //                             // m.fireCDcycle = m.cycle + 30; // cool down if out of energy
+    //                             m.fireCDcycle = m.cycle + 5 + 40 * b.fireCDscale + 60 * (m.energy < 0.05)
+    //                             this.endCycle = simulation.cycle + 10
+    //                             if (input.down) { //down
+    //                                 dist = 0
+    //                                 player.force.y += 5 * player.mass * simulation.g;
+    //                             }
+    //                             if (m.energy > this.drain) {
+    //                                 Matter.Body.setVelocity(player, {
+    //                                     x: player.velocity.x * 0.8,
+    //                                     y: player.velocity.y * 0.8
+    //                                 });
+    //                                 const pull = Vector.mult(Vector.normalise(sub), 0.0008 * Math.min(Math.max(15, dist), 200))
+    //                                 player.force.x += pull.x
+    //                                 player.force.y += pull.y
+
+    //                                 if (dist > 500) {
+    //                                     m.energy -= this.drain
+    //                                     if (m.energy < 0) {
+    //                                         this.endCycle = 0;
+    //                                         if (m.cycle + 50 < m.fireCDcycle) m.fireCDcycle = m.cycle + 50
+    //                                         // refund ammo
+    //                                         b.guns[9].ammo++;
+    //                                         simulation.updateGunHUD();
+    //                                         // for (i = 0, len = b.guns.length; i < len; i++) { //find which gun 
+    //                                         //     if (b.guns[i].name === "harpoon") {
+    //                                         //         break;
+    //                                         //     }
+    //                                         // }
+    //                                     }
+    //                                 }
+    //                             }
+    //                             if (tech.isImmuneGrapple && m.immuneCycle < m.cycle + 10) {
+    //                                 m.immuneCycle = m.cycle + 10;
+    //                                 if (m.energy > 0.001) {
+    //                                     m.energy -= 0.001
+    //                                 } else { //out of energy
+    //                                     Matter.Sleeping.set(this, false)
+    //                                     this.collisionFilter.category = 0
+    //                                     this.collisionFilter.mask = 0
+    //                                     this.do = this.returnToPlayer
+    //                                     this.endCycle = simulation.cycle + 60
+    //                                     m.fireCDcycle = m.cycle + 120; //fire cooldown
+    //                                     //recoil on catching
+    //                                     const momentum = Vector.mult(Vector.sub(this.velocity, player.velocity), (m.crouch ? 0.0001 : 0.0002))
+    //                                     player.force.x += momentum.x
+    //                                     player.force.y += momentum.y
+    //                                 }
+    //                             }
+    //                         } else {
+    //                             Matter.Sleeping.set(this, false)
+    //                             this.collisionFilter.category = 0
+    //                             this.collisionFilter.mask = 0
+    //                             this.do = this.returnToPlayer
+    //                             this.endCycle = simulation.cycle + 60
+    //                             //recoil on catching
+    //                             const momentum = Vector.mult(Vector.sub(this.velocity, player.velocity), (m.crouch ? 0.0001 : 0.0002))
+    //                             player.force.x += momentum.x
+    //                             player.force.y += momentum.y
+    //                         }
+    //                         this.draw();
+    //                     }
+    //                 }
+    //             }
+    //             this.force.x += this.thrustMag * this.mass * Math.cos(this.angle);
+    //             this.force.y += this.thrustMag * this.mass * Math.sin(this.angle);
+    //             this.draw()
+    //         },
+    //     });
+    //     Composite.add(engine.world, bullet[me]); //add bullet to world
+    // },
     harpoon(where, target, angle = m.angle, harpoonSize = 1, isReturn = false, totalCycles = 35, isReturnAmmo = true, thrust = 0.1) {
         const me = bullet.length;
         const returnRadius = 100 * Math.sqrt(harpoonSize)
@@ -2803,16 +3123,26 @@ const b = {
                     if (simulation.cycle > this.lookFrequency) {
                         this.isArmed = true
                         this.lookFrequency = 55 + Math.floor(22 * Math.random())
-                        simulation.drawList.push({
-                            x: this.position.x,
-                            y: this.position.y,
-                            radius: 10,
-                            color: "#f00",
-                            time: 4
-                        });
+                        simulation.drawList.push({ x: this.position.x, y: this.position.y, radius: 10, color: "#f00", time: 4 });
                         this.do = function () { //overwrite the do method for this bullet
+
+
+                            //make mobs think the mine is where the player is
+                            // for (let i = 0; i < mob.length; i++) {
+                            //     mob[i].seePlayer.recall = mob[i].memory + Math.round(mob[i].memory * Math.random()); //cycles before mob falls a sleep
+                            //     mob[i].seePlayer.position.x = this.position.x;
+                            //     mob[i].seePlayer.position.y = this.position.y;
+                            //     mob[i].seePlayer.yes = true;
+                            // }
+
+
                             this.force.y += this.mass * 0.002; //extra gravity
                             if (!(simulation.cycle % this.lookFrequency)) { //find mob targets
+
+
+
+
+
                                 const random = 300 * Math.random()
                                 for (let i = 0, len = mob.length; i < len; ++i) {
                                     if (
@@ -2843,13 +3173,7 @@ const b = {
                                                     }
                                                     if (this.shots < 0) this.endCycle = 0
                                                     if (!(simulation.cycle % (this.lookFrequency * 6))) {
-                                                        simulation.drawList.push({
-                                                            x: this.position.x,
-                                                            y: this.position.y,
-                                                            radius: 8,
-                                                            color: "#fe0",
-                                                            time: 4
-                                                        });
+                                                        simulation.drawList.push({ x: this.position.x, y: this.position.y, radius: 8, color: "#fe0", time: 4 });
                                                     }
                                                 }
                                             }
@@ -5111,9 +5435,9 @@ const b = {
             dmg: 0, //damage done in addition to the damage from momentum
             minDmgSpeed: 2,
             lookFrequency: 20 + Math.floor(7 * Math.random()) - 13 * tech.isLaserBotUpgrade,
-            range: (700 + 500 * tech.isLaserBotUpgrade) * (1 + 0.1 * Math.random()),
+            range: (600 + 375 * tech.isLaserBotUpgrade) * (1 + 0.12 * Math.random()),
             drainThreshold: 0.15 + 0.5 * Math.random() + (tech.isEnergyHealth ? 0.3 : 0),// laser bot will not attack if the player is below this energy
-            drain: (0.57 - 0.45 * tech.isLaserBotUpgrade) * tech.laserDrain,
+            drain: (0.57 - 0.43 * tech.isLaserBotUpgrade) * tech.laserDrain,
             laserDamage: 0.75 + 0.75 * tech.isLaserBotUpgrade,
             endCycle: Infinity,
             classType: "bullet",
@@ -6126,7 +6450,7 @@ const b = {
                 for (let i = 0; i < num; i++) {
                     const me = bullet.length;
                     const dir = m.angle + (Math.random() - 0.5) * spread
-                    bullet[me] = Bodies.rectangle(m.pos.x + 35 * Math.cos(m.angle) + 15 * (Math.random() - 0.5), m.pos.y + 35 * Math.sin(m.angle) + 15 * (Math.random() - 0.5), side, side, b.fireAttributes(dir));
+                    bullet[me] = Bodies.rectangle(m.pos.x, m.pos.y, side, side, b.fireAttributes(dir));
                     Composite.add(engine.world, bullet[me]); //add bullet to world
                     const SPEED = 52 + Math.random() * 8
                     Matter.Body.setVelocity(bullet[me], {
diff --git a/js/engine.js b/js/engine.js
index 21b423f..2d53914 100644
--- a/js/engine.js
+++ b/js/engine.js
@@ -107,7 +107,7 @@ function collisionChecks(event) {
                         !mob[k].isSlowed && !mob[k].isStunned
                     ) {
                         let dmg = Math.min(Math.max(0.025 * Math.sqrt(mob[k].mass), 0.05), 0.3) * simulation.dmgScale; //player damage is capped at 0.3*dmgScale of 1.0
-                        if (m.isCloak) dmg *= 0.5
+                        // if (m.isCloak) dmg *= 0.5
                         mob[k].foundPlayer();
                         if (tech.isRewindAvoidDeath && (m.energy + 0.05) > Math.min(0.95, m.maxEnergy) && dmg > 0.01) { //CPT reversal runs in m.damage, but it stops the rest of the collision code here too
                             m.damage(dmg);
@@ -119,25 +119,11 @@ function collisionChecks(event) {
                                 if (document.getElementById("tech-flip-flop")) document.getElementById("tech-flip-flop").innerHTML = ` = <strong>OFF</strong>`
                                 m.eyeFillColor = 'transparent'
                                 m.damage(dmg);
-                                if (tech.isFlipFlopCoupling) {
-                                    m.couplingChange(-5)
-                                    for (let i = 0; i < mob.length; i++) {
-                                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                                    }
-                                    spawn.WIMP()
-                                    mob[mob.length - 1].isDecoupling = true //so you can find it to remove
-                                }
                             } else {
                                 tech.isFlipFlopOn = true //immune to damage this hit, lose immunity for next hit
                                 if (document.getElementById("tech-flip-flop")) document.getElementById("tech-flip-flop").innerHTML = ` = <strong>ON</strong>`
                                 m.eyeFillColor = m.fieldMeterColor //'#0cf'
                                 if (!tech.isFlipFlopHarm) m.damage(dmg);
-                                if (tech.isFlipFlopCoupling) {
-                                    m.couplingChange(5)
-                                    for (let i = 0; i < mob.length; i++) {
-                                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                                    }
-                                }
                             }
                             if (tech.isFlipFlopHealth) {
                                 m.setMaxHealth();
@@ -161,7 +147,7 @@ function collisionChecks(event) {
                         }
                         if (tech.isPiezo) m.energy += 20.48;
                         if (tech.isCouplingNoHit && m.coupling > 0) {
-                            m.couplingChange(-0.5)
+                            m.couplingChange(-5)
 
                             const unit = Vector.rotate({ x: 1, y: 0 }, 6.28 * Math.random())
                             let where = Vector.add(m.pos, Vector.mult(unit, 17))
@@ -295,7 +281,7 @@ function collisionChecks(event) {
                                     }
                                 }
 
-                                let dmg = tech.blockDamage * m.dmgScale * v * obj.mass * (tech.isMobBlockFling ? 2.5 : 1) * (tech.isBlockRestitution ? 2.5 : 1) * ((m.fieldMode === 0 || m.fieldMode === 8) ? 1 + 0.4 * m.coupling : 1);
+                                let dmg = tech.blockDamage * m.dmgScale * v * obj.mass * (tech.isMobBlockFling ? 2.5 : 1) * (tech.isBlockRestitution ? 2.5 : 1) * ((m.fieldMode === 0 || m.fieldMode === 8) ? 1 + 0.04 * m.coupling : 1);
                                 if (mob[k].isShielded) dmg *= 0.7
 
                                 mob[k].damage(dmg, true);
diff --git a/js/index.js b/js/index.js
index 3fb42fc..d81eb6e 100644
--- a/js/index.js
+++ b/js/index.js
@@ -302,6 +302,32 @@ const build = {
         document.getElementById("hide-images").checked = localSettings.isHideImages
         // console.log(localSettings.isHideImages, from)
     },
+    hideHUD() {
+        localSettings.isHideHUD = !localSettings.isHideHUD
+        if (localSettings.isAllowed) localStorage.setItem("localSettings", JSON.stringify(localSettings)); //update local storage
+        document.getElementById("hide-hud").checked = localSettings.isHideHUD
+        document.getElementById("hide-hud").classList.toggle("ticked")
+
+        simulation.removeEphemera("dmgDefBars")
+        if (!localSettings.isHideHUD) {
+            simulation.ephemera.push({
+                name: "dmgDefBars", count: 0, do() {
+                    if (!(m.cycle % 15)) { //4 times a second
+                        const defense = m.defense()             //update defense bar
+                        if (m.lastCalculatedDefense !== defense) {
+                            document.getElementById("defense-bar").style.width = Math.floor(300 * m.maxHealth * (1 - defense)) + "px";
+                            m.lastCalculatedDefense = defense
+                        }
+                        const damage = tech.damageFromTech()             //update damage bar
+                        if (m.lastCalculatedDamage !== damage) {
+                            document.getElementById("damage-bar").style.height = Math.floor((Math.atan(0.25 * damage - 0.25) + 0.25) * 0.53 * canvas.height) + "px";
+                            m.lastCalculatedDamage = damage
+                        }
+                    }
+                },
+            })
+        }
+    },
     pauseGrid() {
         // build.pixelDraw();
         //used for junk estimation
@@ -330,15 +356,18 @@ const build = {
     <g stroke='none' fill='#333' stroke-width="2" font-size="14px" font-family="Ariel, sans-serif"> <text x="5" y="15">copy build url</text></g>
 </svg><span style="font-size:1.5em;font-weight: 600; float: right;">PAUSED</span> 
 <br>
-<label for="hide-images-pause" title="hide images for fields, guns, and tech" style="font-size:1.3em;" >hide images:</label>
 <input onclick="build.showImages('pause')" type="checkbox" id="hide-images-pause" name="hide-images-pause" ${localSettings.isHideImages ? "checked" : ""}>
-<span style="float: right;">press ${input.key.pause} to resume</span> 
+<label for="hide-images-pause" title="hide images for fields, guns, and tech" style="font-size:1.3em;" >hide images</label>
+<span style="float: right;">press ${input.key.pause} to resume</span>
+<br>
+<input onclick="build.hideHUD('settings')" type="checkbox" id="hide-hud" name="hide-hud" ${localSettings.isHideHUD ? "checked" : ""}>
+<label for="hide-hud" title="hide: tech, defense, damage, in game console" style="font-size:1.3em;">minimal HUD</label>
 <br>
 <br><strong class='color-d'>damage</strong>: ${((tech.damageFromTech())).toPrecision(4)} &nbsp; &nbsp; difficulty: ${((m.dmgScale)).toPrecision(4)}
 <br><strong class='color-defense'>defense</strong>: ${tech.isEnergyHealth ? (1 - Math.pow(m.defense(), 0.13)).toPrecision(5) : (1 - m.defense()).toPrecision(5)} &nbsp; &nbsp; difficulty: ${(1 / simulation.dmgScale).toPrecision(4)}
 <br><strong><em>fire rate</em></strong>: ${((1 - b.fireCDscale) * 100).toFixed(b.fireCDscale < 0.1 ? 2 : 0)}%
 ${tech.duplicationChance() ? `<br><strong class='color-dup'>duplication</strong>: ${(tech.duplicationChance() * 100).toFixed(0)}%` : ""}
-${m.coupling ? `<br><strong class='color-coupling'>coupling</strong>: ${(m.coupling).toFixed(2)} &nbsp; <span style = 'font-size:90%;'>` + m.couplingDescription() + "</span>" : ""}
+${m.coupling ? `<br><span style = 'font-size:90%;'>` + m.couplingDescription(m.coupling) + `</span> from ${(m.coupling).toFixed(0)} ${powerUps.orb.coupling(1)}` : ""}
 ${botText}
 <br>
 <br><strong class='color-h'>health</strong>: (${(m.health * 100).toFixed(0)} / ${(m.maxHealth * 100).toFixed(0)})
@@ -380,7 +409,7 @@ ${simulation.isCheating ? "<br><br><em>lore disabled</em>" : ""}
                     <div class="grid-title"><div class="circle-grid gun"></div> &nbsp; ${build.nameLink(b.guns[b.inventory[i]].name)} - <span style="font-size:100%;font-weight: 100;">${b.guns[b.inventory[i]].ammo}</span></div>
                     ${b.guns[b.inventory[i]].description}</div> </div>`
         }
-        text += `<div class="pause-grid-module pause-console" style = "background-color: rgba(255,255,255,0.3);">${document.getElementById("text-log").innerHTML}</div>` //show last in game console message
+        if (!localSettings.isHideHUD) text += `<div class="pause-grid-module pause-console" style = "background-color: rgba(255,255,255,0.3);">${document.getElementById("text-log").innerHTML}</div>` //show last in game console message
         let el = document.getElementById("pause-grid-left")
         el.style.display = "grid"
         el.innerHTML = text
@@ -432,7 +461,7 @@ ${simulation.isCheating ? "<br><br><em>lore disabled</em>" : ""}
                     text += build.techText(i) + "</div>"
                 }
             } else if (tech.tech[i].isLost) {
-                text += `<div class="pause-grid-module" style="text-decoration: line-through;"><div class="grid-title">${tech.tech[i].link}</div>${tech.tech[i].descriptionFunction ? tech.tech[i].descriptionFunction() : tech.tech[i].description}</div></div>`
+                text += `<div class="pause-grid-module" style="text-decoration: line-through; padding-left: 8px; opacity: 0.4;"><div class="grid-title">${tech.tech[i].link}</div>${tech.tech[i].descriptionFunction ? tech.tech[i].descriptionFunction() : tech.tech[i].description}</div></div>`
             }
         }
         el = document.getElementById("pause-grid-right")
@@ -454,7 +483,6 @@ ${simulation.isCheating ? "<br><br><em>lore disabled</em>" : ""}
 
     },
     unPauseGrid() {
-        document.getElementById("tech").style.display = "inline"
         document.getElementById("guns").style.display = "inline"
         document.getElementById("field").style.display = "inline"
         if (tech.isEnergyHealth) {
@@ -464,8 +492,11 @@ ${simulation.isCheating ? "<br><br><em>lore disabled</em>" : ""}
             document.getElementById("health").style.display = "inline"
             document.getElementById("health-bg").style.display = "inline"
         }
-        document.getElementById("defense-bar").style.display = "inline"
-        document.getElementById("damage-bar").style.display = "inline"
+        if (!localSettings.isHideHUD) {
+            document.getElementById("tech").style.display = "inline"
+            document.getElementById("defense-bar").style.display = "inline"
+            document.getElementById("damage-bar").style.display = "inline"
+        }
         // document.body.style.overflow = "hidden"
         document.getElementById("pause-grid-left").style.display = "none"
         document.getElementById("pause-grid-right").style.display = "none"
@@ -1494,6 +1525,10 @@ if (localSettings.isAllowed && !localSettings.isEmpty) {
     }
     if (localSettings.isHideImages === undefined) localSettings.isHideImages = true //default to hide images
     document.getElementById("hide-images").checked = localSettings.isHideImages
+
+    if (localSettings.isHideHUD === undefined) localSettings.isHideHUD = false
+    document.getElementById("hide-hud").checked = localSettings.isHideHUD
+
 } else {
     console.log('setting default localSettings')
     const isAllowed = localSettings.isAllowed //don't overwrite isAllowed value
@@ -1513,6 +1548,7 @@ if (localSettings.isAllowed && !localSettings.isEmpty) {
         isHuman: false,
         key: undefined,
         isHideImages: true, //default to hide images
+        isHideHUD: false,
     };
     input.setDefault()
     if (localSettings.isAllowed) localStorage.setItem("localSettings", JSON.stringify(localSettings)); //update local storage
diff --git a/js/level.js b/js/level.js
index 981a413..30ddddd 100644
--- a/js/level.js
+++ b/js/level.js
@@ -26,31 +26,31 @@ const level = {
             // powerUps.research.changeRerolls(11)
             // m.immuneCycle = Infinity //you can't take damage
             // tech.tech[297].frequency = 100
-            // m.couplingChange(5)
-            // m.setField("standing wave") //1 standing wave  2 perfect diamagnetism  3 negative mass  4 molecular assembler  5 plasma torch  6 time dilation  7 metamaterial cloaking  8 pilot wave  9 wormhole
+            // m.couplingChange(10)
+            // m.setField("metamaterial cloaking") //1 standing wave  2 perfect diamagnetism  3 negative mass  4 molecular assembler  5 plasma torch  6 time dilation  7 metamaterial cloaking  8 pilot wave  9 wormhole
             // m.energy = 0
             // simulation.molecularMode = 2
             // m.damage(0.1);
             // b.giveGuns("harpoon") //0 nail gun  1 shotgun  2 super balls 3 wave 4 missiles 5 grenades  6 spores  7 drones  8 foam  9 harpoon  10 mine  11 laser
-            // b.giveGuns("foam") //0 nail gun  1 shotgun  2 super balls 3 wave 4 missiles 5 grenades  6 spores  7 drones  8 foam  9 harpoon  10 mine  11 laser
+            // b.giveGuns("shotgun") //0 nail gun  1 shotgun  2 super balls 3 wave 4 missiles 5 grenades  6 spores  7 drones  8 foam  9 harpoon  10 mine  11 laser
             // b.guns[3].ammo = 100000000
-            // tech.giveTech("induction brake")
+            // tech.giveTech("grappling hook")
             // tech.giveTech("null hypothesis")
-            // for (let i = 0; i < 1; ++i) tech.giveTech("dye laser")
             // for (let i = 0; i < 1; ++i) tech.giveTech("free-electron laser")
             // for (let i = 0; i < 1; ++i) tech.giveTech("waste heat recovery")
             // requestAnimationFrame(() => { for (let i = 0; i < 1; i++) tech.giveTech("foam-bot") });
             // for (let i = 0; i < 1; i++) tech.giveTech("foam-bot upgrade")
+            // for (let i = 0; i < 1; ++i) tech.giveTech("Occams razor")
             // for (let i = 0; i < 3; i++) powerUps.directSpawn(450, -50, "tech");
             // for (let i = 0; i < 10; i++) powerUps.directSpawn(1750, -500, "research");
             // for (let i = 0; i < 10; i++) powerUps.directSpawn(1750, -500, "coupling");
-            // level.superNgonBros();
+            // level.testing();
             // spawn.nodeGroup(3200, -300, "sniper")
             // spawn.nodeGroup(2200, -300, "sniper")
             // spawn.nodeGroup(2200, -300, "sniper")
             // spawn.mantisBoss(1900, -500)
             // spawn.cellBoss(1900, -500)
-            // for (let i = 0; i < 5; ++i) spawn.starter(1900, -500, 50)
+            // for (let i = 0; i < 2; ++i) spawn.starter(1900, -500, 50)
             // spawn.sneaker(1900, -500, 25)
             // spawn.sniper(2000, -450)
             // spawn.zombie(1000 + 1000 * Math.random(), -500 + 300 * Math.random(), 30, 5, "white") // zombie(x, y, radius, sides, color)
@@ -139,12 +139,6 @@ const level = {
             tech.isFlipFlopOn = true
             if (tech.isFlipFlopHealth) m.setMaxHealth()
             if (tech.isRelayEnergy) m.setMaxEnergy()
-            if (tech.isFlipFlopCoupling) {
-                m.couplingChange(5)
-                for (let i = 0; i < mob.length; i++) {
-                    if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                }
-            }
             m.eyeFillColor = m.fieldMeterColor
             simulation.makeTextLog(`tech.isFlipFlopOn <span class='color-symbol'>=</span> true`);
         }
@@ -1192,7 +1186,7 @@ const level = {
         y = y + height / 2
         const doorBlock = body[body.length] = Bodies.rectangle(x, y, width, height, {
             collisionFilter: {
-                category: cat.map,
+                category: cat.body,//cat.map,
                 mask: cat.player | cat.body | cat.bullet | cat.powerUp | cat.mob | cat.mobBullet //cat.player | cat.map | cat.body | cat.bullet | cat.powerUp | cat.mob | cat.mobBullet
             },
             isNoSetCollision: true,
@@ -1252,7 +1246,7 @@ const level = {
                 return this.position.y > y - 1
             },
             draw() {
-                ctx.fillStyle = "#555"
+                ctx.fillStyle = "#666"
                 ctx.beginPath();
                 const v = this.vertices;
                 ctx.moveTo(v[0].x, v[0].y);
@@ -3175,6 +3169,8 @@ const level = {
 
         const doorIn = level.door(-313, -950, 525, 200, 190, 2) //x, y, width, height, distance, speed = 1
         const doorOut = level.door(2762, -175, 525, 200, 190, 2) //x, y, width, height, distance, speed = 1
+        doorIn.collisionFilter.category = cat.map;
+        doorOut.collisionFilter.category = cat.map; // to prevent boson composite from letting the player skip the level
         // doorOut.isClosing = true
         let isDoorsLocked = false
         let isFightOver = false
@@ -5186,6 +5182,10 @@ const level = {
             portal[3].query()
         };
         level.customTopLayer = () => {
+            doorButtonRight.draw();
+            doorCenterRight.draw();
+            doorCenterLeft.draw();
+            doorLeft.draw();
             hazardSlimeLeft.query();
             hazardSlimeRight.query();
             portal[0].draw();
@@ -22147,8 +22147,10 @@ const level = {
         m.addHealth(0.25)
         document.getElementById("health").style.display = "inline" //show your health bar
         document.getElementById("health-bg").style.display = "inline"
-        document.getElementById("defense-bar").style.display = "inline"
-        document.getElementById("damage-bar").style.display = "inline"
+        if (!localSettings.isHideHUD) {
+            document.getElementById("defense-bar").style.display = "inline"
+            document.getElementById("damage-bar").style.display = "inline"
+        }
         level.setPosToSpawn(60, -50); //normal spawn
         spawn.mapRect(10, -10, 100, 20); //small platform for player
         level.exit.x = 1775;
diff --git a/js/mob.js b/js/mob.js
index 9b0b0ee..258b074 100644
--- a/js/mob.js
+++ b/js/mob.js
@@ -239,7 +239,7 @@ const mobs = {
     deathCount: 0,
     mobSpawnWithHealth: 1,
     setMobSpawnHealth() {
-        mobs.mobSpawnWithHealth = 0.88 ** (tech.mobSpawnWithHealth) //+ (m.fieldMode === 0 || m.fieldMode === 7) * m.coupling
+        mobs.mobSpawnWithHealth = 0.88 ** (tech.mobSpawnWithHealth)
     },
     //**********************************************************************************************
     //**********************************************************************************************
@@ -337,7 +337,7 @@ const mobs = {
             },
             alwaysSeePlayer() {
                 if (!m.isCloak) {
-                    this.seePlayer.recall = true;
+                    this.seePlayer.recall = 1;
                     this.seePlayer.position.x = player.position.x;
                     this.seePlayer.position.y = player.position.y;
                 }
@@ -1228,15 +1228,6 @@ const mobs = {
                             simulation.timePlayerSkip((this.isBoss ? 45 : 25) * tech.deathSkipTime)
                             simulation.loop(); //ending with a wipe and normal loop fixes some very minor graphical issues where things are draw in the wrong locations
                         }); //wrapping in animation frame prevents errors, probably
-
-                        // if (tech.isFlipFlopOn) {
-                        //     m.rewind(this.isBoss ? 45 : 25)
-                        // } else {
-                        //     requestAnimationFrame(() => {
-                        //         simulation.timePlayerSkip(this.isBoss ? 45 : 25)
-                        //         simulation.loop(); //ending with a wipe and normal loop fixes some very minor graphical issues where things are draw in the wrong locations
-                        //     }); //wrapping in animation frame prevents errors, probably
-                        // }
                     }
                     if (tech.isEnergyLoss) m.energy *= 0.8;
                     powerUps.spawnRandomPowerUp(this.position.x, this.position.y);
diff --git a/js/player.js b/js/player.js
index 62cad97..a3433a5 100644
--- a/js/player.js
+++ b/js/player.js
@@ -525,7 +525,7 @@ const m = {
     },
     baseHealth: 1,
     setMaxHealth() {
-        m.maxHealth = m.baseHealth + tech.extraMaxHealth + 2.22 * tech.isFallingDamage + 4 * tech.isFlipFlop * tech.isFlipFlopOn * tech.isFlipFlopHealth //+ (m.fieldMode === 0 || m.fieldMode === 5) * 0.5 * m.coupling
+        m.maxHealth = m.baseHealth + tech.extraMaxHealth + 2.22 * tech.isFallingDamage + 4 * tech.isFlipFlop * tech.isFlipFlopOn * tech.isFlipFlopHealth
         document.getElementById("health-bg").style.width = `${Math.floor(300 * m.maxHealth)}px`
         simulation.makeTextLog(`<span class='color-var'>m</span>.<span class='color-h'>maxHealth</span> <span class='color-symbol'>=</span> ${m.maxHealth.toFixed(2)}`)
         if (m.health > m.maxHealth) m.health = m.maxHealth;
@@ -549,7 +549,7 @@ const m = {
         if (tech.isSlowFPS) dmg *= 0.8
         if (tech.energyRegen === 0) dmg *= 0.34
         // if (tech.healthDrain) dmg *= 1 + 3.33 * tech.healthDrain //tech.healthDrain = 0.03 at one stack //cause more damage
-        if (m.fieldMode === 0 || m.fieldMode === 3) dmg *= 0.73 ** m.coupling
+        if (m.fieldMode === 0 || m.fieldMode === 3) dmg *= 0.73 ** (0.1 * m.coupling)
         if (tech.isLowHealthDefense) dmg *= 1 - Math.max(0, 1 - m.health) * 0.8
         if (tech.isHarmReduceNoKill && m.lastKillCycle + 300 < m.cycle) dmg *= 0.33
         if (tech.squirrelFx !== 1) dmg *= Math.pow(0.7, (tech.squirrelFx - 1) / 0.4) //cause more damage
@@ -1893,7 +1893,7 @@ const m = {
         }
     },
     setMaxEnergy(isMessage = true) {
-        m.maxEnergy = (tech.isMaxEnergyTech ? 0.5 : 1) + tech.bonusEnergy + tech.healMaxEnergyBonus + tech.harmonicEnergy + 2 * tech.isGroundState + 3 * tech.isRelay * tech.isFlipFlopOn * tech.isRelayEnergy + 1.5 * (m.fieldMode === 1) + (m.fieldMode === 0 || m.fieldMode === 1) * 0.5 * m.coupling + 0.4 * tech.isStandingWaveExpand
+        m.maxEnergy = (tech.isMaxEnergyTech ? 0.5 : 1) + tech.bonusEnergy + tech.healMaxEnergyBonus + tech.harmonicEnergy + 2 * tech.isGroundState + 3 * tech.isRelay * tech.isFlipFlopOn * tech.isRelayEnergy + 1.5 * (m.fieldMode === 1) + (m.fieldMode === 0 || m.fieldMode === 1) * 0.05 * m.coupling + 0.4 * tech.isStandingWaveExpand
         if (isMessage) simulation.makeTextLog(`<span class='color-var'>m</span>.<span class='color-f'>maxEnergy</span> <span class='color-symbol'>=</span> ${(m.maxEnergy.toFixed(2))}`)
     },
     fieldMeterColor: "#0cf",
@@ -1945,7 +1945,7 @@ const m = {
         } else {
             m.fieldRegen = 0.001 //6 energy per second
         }
-        if (m.fieldMode === 0 || m.fieldMode === 4) m.fieldRegen += 0.00133 * m.coupling //return `generate <strong>${(6*couple).toFixed(0)}</strong> <strong class='color-f'>energy</strong> per second`
+        if (m.fieldMode === 0 || m.fieldMode === 4) m.fieldRegen += 0.000133 * m.coupling //return `generate <strong>${(6*couple).toFixed(0)}</strong> <strong class='color-f'>energy</strong> per second`
         if (tech.isTimeCrystals) {
             m.fieldRegen *= 2.5
         } else if (tech.isGroundState) {
@@ -2290,7 +2290,7 @@ const m = {
             }
             if (!who.isInvulnerable && (m.coupling && m.fieldMode === 0) && bullet.length < 200) { //for field emitter iceIX
                 for (let i = 0; i < m.coupling; i++) {
-                    if (m.coupling - i > 1.25 * Math.random()) {
+                    if (0.1 * m.coupling - i > 1.25 * Math.random()) {
                         const sub = Vector.mult(Vector.normalise(Vector.sub(who.position, m.pos)), (m.fieldRange * m.harmonicRadius) * (0.4 + 0.3 * Math.random())) //m.harmonicRadius should be 1 unless you are standing wave expansion
                         const rad = Vector.rotate(sub, 1 * (Math.random() - 0.5))
                         const angle = Math.atan2(sub.y, sub.x)
@@ -2457,28 +2457,27 @@ const m = {
     couplingDescription(couple = m.coupling) {
         switch (m.fieldMode) {
             case 0: //field emitter
-                return `gain the <strong class='color-coupling'>coupling</strong> effects of <strong>all</strong> <strong class='color-f'>fields</strong>`
+                return `<strong>all</strong> other <strong class='color-f'>field</strong> effects`
             case 1: //standing wave
                 // return `<span style = 'font-size:95%;'><strong>deflecting</strong> condenses +${couple.toFixed(1)} <strong class='color-s'>ice IX</strong></span>`
-                // return `<span style = 'font-size:95%;'><strong>deflecting</strong> condenses +${couple.toFixed(1)} <strong class='color-s'>ice IX</strong></span>`
-                return `+${(couple * 50).toFixed(0)} maximum <strong class='color-f'>energy</strong>`
+                return `+${(couple * 5).toFixed(0)} maximum <strong class='color-f'>energy</strong>`
             case 2: //perfect diamagnetism
-                return `<span style = 'font-size:95%;'><strong>deflecting</strong> condenses +${couple.toFixed(1)} <strong class='color-s'>ice IX</strong></span>`
+                return `<span style = 'font-size:95%;'><strong>deflecting</strong> condenses ${0.1 * couple.toFixed(2)} <strong class='color-s'>ice IX</strong></span>`
             // return `<span style = 'font-size:89%;'><strong>invulnerable</strong> <strong>+${2*couple}</strong> seconds post collision</span>`
             case 3: //negative mass
-                return `<strong>+${((1 - 0.73 ** couple) * 100).toFixed(1)}%</strong> <strong class='color-defense'>defense</strong>`
+                return `<strong>+${((1 - 0.73 ** couple) * 10).toFixed(1)}%</strong> <strong class='color-defense'>defense</strong>`
             case 4: //assembler
-                return `generate <strong>${(8 * couple).toFixed(0)}</strong> <strong class='color-f'>energy</strong> per second`
+                return `generate <strong>${(0.8 * couple).toFixed(1)}</strong> <strong class='color-f'>energy</strong> per second`
             case 5: //plasma
-                return `<strong>+${(15 * couple).toFixed(0)}%</strong> <strong class='color-d'>damage</strong>`
+                return `<strong>+${(1.5 * couple).toFixed(1)}%</strong> <strong class='color-d'>damage</strong>`
             case 6: //time dilation
-                return `<strong>+${(50 * couple).toFixed(0)}%</strong> longer <strong style='letter-spacing: 2px;'>stopped time</strong>` //<strong>movement</strong>, <strong>jumping</strong>, and 
+                return `<strong>+${(5 * couple).toFixed(0)}%</strong> longer <strong style='letter-spacing: 2px;'>stopped time</strong>` //<strong>movement</strong>, <strong>jumping</strong>, and 
             case 7: //cloaking
-                return `<strong>+${(33 * couple).toFixed(0)}%</strong> ambush <strong class='color-d'>damage</strong>`
+                return `<strong>+${(3.3 * couple).toFixed(1)}%</strong> ambush <strong class='color-d'>damage</strong>`
             case 8: //pilot wave
-                return `<strong>+${(40 * couple).toFixed(0)}%</strong> <strong class='color-block'>block</strong> collision <strong class='color-d'>damage</strong>`
+                return `<strong>+${(4 * couple).toFixed(0)}%</strong> <strong class='color-block'>block</strong> collision <strong class='color-d'>damage</strong>`
             case 9: //wormhole
-                return `<span style = 'font-size:89%;'>after eating <strong class='color-block'>blocks</strong> <strong>+${(20 * couple).toFixed(0)}</strong> <strong class='color-f'>energy</strong></span>`
+                return `<span style = 'font-size:89%;'>after eating <strong class='color-block'>blocks</strong> <strong>+${(2 * couple).toFixed(0)}</strong> <strong class='color-f'>energy</strong></span>`
         }
     },
     couplingChange(change = 0) {
@@ -2490,11 +2489,10 @@ const m = {
                 if (powerUp[i].name === "coupling") {
                     Matter.Composite.remove(engine.world, powerUp[i]);
                     powerUp.splice(i, 1);
-                    m.coupling += 0.1
+                    m.coupling += 1
                     if (!(m.coupling < 0)) break
                 }
             }
-
             m.coupling = 0 //can't go negative
         }
         m.setMaxEnergy(false);
@@ -2503,33 +2501,7 @@ const m = {
         mobs.setMobSpawnHealth();
         powerUps.setPowerUpMode();
 
-        if ((m.fieldMode === 0 || m.fieldMode === 9) && !build.isExperimentSelection && !simulation.isTextLogOpen) simulation.circleFlare(0.4);
-        // m.collisionImmuneCycles = 30 + m.coupling * 120 //2 seconds
-        // switch (m.fieldMode) {
-        //     case 0: //field emitter
-        //         // m.fieldFireRate = 0.8 ** (m.coupling)
-        //         // b.setFireCD();
-        //         break
-        //         // case 1: //standing wave
-        //         //     break
-        //         // case 2: //perfect diamagnetism
-        //         //     break
-        //         // case 3: //negative mass
-        //         //     break
-        //         // case 4: //assembler
-        //         //     break
-        //         // case 5: //plasma
-        //         //     break
-        //     case 6: //time dilation
-        //         // m.fieldFireRate = 0.75 * 0.8 ** (m.coupling)
-        //         break
-        //         // case 7: //cloaking
-        //         //     break
-        //         // case 8: //pilot wave
-        //         //     break
-        //         // case 9: //wormhole
-        //         //     break
-        // }
+        // if ((m.fieldMode === 0 || m.fieldMode === 9) && !build.isExperimentSelection && !simulation.isTextLogOpen) simulation.circleFlare(0.4);
     },
     setField(index) {
         if (isNaN(index)) { //find index by name
@@ -2577,6 +2549,12 @@ const m = {
             }
         }
     },
+    // <div id="cube" style="width: 4em; height: 8em;">
+    //     <div style="transform: translate3d(1em, 0em, 0em)">1</div>
+    //     <div style="transform: translate3d(2em, 0em, 0em)">2</div>
+    //     <div style="transform: translate3d(3em, 0em, 0em)">3</div>
+    //     <div style="transform: translate3d(4em, 0em, 0em)">4</div>
+    // </div>
     {
         name: "standing wave",
         //<strong>deflecting</strong> protects you in every <strong>direction</strong>
@@ -2586,7 +2564,7 @@ const m = {
         drainCD: 0,
         effect: () => {
             m.fieldBlockCD = 0;
-            m.blockingRecoil = 2 //4 is normal
+            m.blockingRecoil = 1.5 //4 is normal
             m.fieldRange = 185
             m.fieldShieldingScale = 1.6 * Math.pow(0.5, (tech.harmonics - 2))
             // m.fieldHarmReduction = 0.66; //33% reduction
@@ -2717,7 +2695,7 @@ const m = {
                             m.fieldCDcycle = m.cycle + m.fieldBlockCD + (mob[i].isShielded ? 10 : 0);
                             if (!mob[i].isInvulnerable && bullet.length < 250) {
                                 for (let i = 0; i < m.coupling; i++) {
-                                    if (m.coupling - i > Math.random()) {
+                                    if (0.1 * m.coupling - i > Math.random()) {
                                         const angle = m.fieldAngle + 4 * m.fieldArc * (Math.random() - 0.5)
                                         const radius = m.fieldRange * (0.6 + 0.3 * Math.random())
                                         b.iceIX(6 + 6 * Math.random(), angle, Vector.add(m.fieldPosition, {
@@ -2853,16 +2831,18 @@ const m = {
                         }); //set velocity to cap, but keep the direction
                     }
 
-
+                    // go invulnerable while field is active, but also drain energy
+                    // if (true && m.energy > 2 * m.fieldRegen && m.immuneCycle < m.cycle + tech.cyclicImmunity) {
+                    //     m.immuneCycle = m.cycle + 1; //player is immune to damage for 60 cycles
+                    //     m.energy -= 2 * m.fieldRegen
+                    //     if (m.energy < m.fieldRegen) m.fieldCDcycle = m.cycle + 90;
+                    // }
 
 
                     if (m.energy > m.fieldRegen) m.energy -= m.fieldRegen
                     m.grabPowerUp();
                     m.lookForPickUp();
-                    m.fieldPosition = {
-                        x: m.pos.x,
-                        y: m.pos.y
-                    }
+                    m.fieldPosition = { x: m.pos.x, y: m.pos.y }
                     m.fieldAngle = m.angle
                     //draw field attached to player
                     if (m.holdingTarget) {
@@ -3215,61 +3195,6 @@ const m = {
             }
         }
     },
-    // {
-    //     name: "plasma torch",
-    //     description: "use <strong class='color-f'>energy</strong> to emit short range <strong class='color-plasma'>plasma</strong><br><strong class='color-d'>damages</strong> and <strong>pushes</strong> mobs away",
-    //     effect() {
-    //         m.fieldMeterColor = "#f0f"
-    //         m.eyeFillColor = m.fieldMeterColor
-    //         m.hold = function() {
-    //             b.isExtruderOn = false
-    //             if (m.isHolding) {
-    //                 m.drawHold(m.holdingTarget);
-    //                 m.holding();
-    //                 m.throwBlock();
-    //             } else if (input.field && m.fieldCDcycle < m.cycle) { //not hold but field button is pressed
-    //                 m.grabPowerUp();
-    //                 m.lookForPickUp();
-    //                 if (tech.isExtruder) {
-    //                     b.extruder();
-    //                 } else {
-    //                     b.plasma();
-    //                 }
-    //             } else if (m.holdingTarget && m.fieldCDcycle < m.cycle) { //holding, but field button is released
-    //                 m.pickUp();
-    //             } else {
-    //                 m.holdingTarget = null; //clears holding target (this is so you only pick up right after the field button is released and a hold target exists)
-    //             }
-    //             m.drawRegenEnergy("rgba(0, 0, 0, 0.2)")
-
-    //             if (tech.isExtruder) {
-    //                 if (input.field) {
-    //                     b.wasExtruderOn = true
-    //                 } else {
-    //                     b.wasExtruderOn = false
-    //                     b.canExtruderFire = true
-    //                 }
-    //                 ctx.beginPath(); //draw all the wave bullets
-    //                 for (let i = 0, len = bullet.length; i < len; i++) {
-    //                     if (bullet[i].isWave) {
-    //                         if (bullet[i].isBranch) {
-    //                             ctx.moveTo(bullet[i].position.x, bullet[i].position.y)
-    //                         } else {
-    //                             ctx.lineTo(bullet[i].position.x, bullet[i].position.y)
-    //                         }
-    //                     }
-    //                 }
-    //                 if (b.wasExtruderOn && b.isExtruderOn) ctx.lineTo(m.pos.x + 15 * Math.cos(m.angle), m.pos.y + 15 * Math.sin(m.angle))
-    //                 ctx.lineWidth = 4;
-    //                 ctx.strokeStyle = "#f07"
-    //                 ctx.stroke();
-    //                 ctx.lineWidth = tech.extruderRange;
-    //                 ctx.strokeStyle = "rgba(255,0,110,0.05)"
-    //                 ctx.stroke();
-    //             }
-    //         }
-    //     }
-    // },
     {
         name: "plasma torch",
         description: "use <strong class='color-f'>energy</strong> to emit short range <strong class='color-plasma'>plasma</strong><br><strong class='color-d'>damages</strong> and <strong>pushes</strong> mobs away<br>generate <strong>10</strong> <strong class='color-f'>energy</strong> per second",
@@ -3721,7 +3646,7 @@ const m = {
                         m.throwBlock();
                         m.wakeCheck();
                     } else if (input.field && m.fieldCDcycle < m.cycle) { //not hold but field button is pressed
-                        const drain = 0.0014 / (1 + 0.5 * m.coupling)
+                        const drain = 0.0014 / (1 + 0.05 * m.coupling)
                         if (m.energy > drain) m.energy -= drain
                         m.grabPowerUp();
                         if (this.rewindCount === 0) {
@@ -3810,7 +3735,7 @@ const m = {
                         m.holding();
                         m.throwBlock();
                     } else if (input.field && m.fieldCDcycle < m.cycle) {
-                        const drain = 0.0026 / (1 + 0.3 * m.coupling)
+                        const drain = 0.0026 / (1 + 0.03 * m.coupling)
                         if (m.energy > drain) m.energy -= drain
                         m.grabPowerUp();
                         m.lookForPickUp(); //this drains energy 0.001
@@ -3870,6 +3795,33 @@ const m = {
             m.isSneakAttack = true;
             m.sneakAttackCycle = 0;
             m.enterCloakCycle = 0;
+            m.drawCloakedM = function () {
+                m.walk_cycle -= m.flipLegs * m.Vx;
+                m.draw();
+
+                // let history = m.history[(m.cycle - 1) % 600]
+                // m.pos.x = history.position.x
+                // m.pos.y = history.position.y + m.yPosDifference - history.yOff
+
+                // m.pos.x += 4
+                // ctx.fillStyle = m.fillColor;
+                // ctx.save();
+                // ctx.translate(m.pos.x, m.pos.y);
+                // m.calcLeg(Math.PI, -3);
+                // m.drawLeg("#ccc");
+                // m.calcLeg(0, 0);
+                // m.drawLeg("#ccc");
+                // ctx.rotate(m.angle);
+                // ctx.beginPath();
+                // ctx.arc(0, 0, 30, 0, 2 * Math.PI);
+                // ctx.fillStyle = "#fff"
+                // ctx.fill();
+                // ctx.arc(15, 0, 4, 0, 2 * Math.PI);
+                // ctx.strokeStyle = "#333";
+                // ctx.lineWidth = 2;
+                // ctx.stroke();
+                // ctx.restore()
+            }
             m.drawCloak = function () {
                 m.fieldPhase += 0.007
                 const wiggle = 0.15 * Math.sin(m.fieldPhase * 0.5)
@@ -3905,6 +3857,7 @@ const m = {
                     if (!m.isCloak && m.energy > drain + 0.03) {
                         m.energy -= drain
                         m.isCloak = true //enter cloak
+                        m.fieldHarmReduction = 0.5;
                         m.enterCloakCycle = m.cycle
                         if (tech.isCloakHealLastHit && m.lastHit > 0) {
                             const heal = Math.min(0.75 * m.lastHit, m.energy)
@@ -3930,6 +3883,8 @@ const m = {
                 } else if (m.isCloak) { //exit cloak
                     m.sneakAttackCycle = m.cycle
                     m.isCloak = false
+                    m.fieldHarmReduction = 1
+
                     if (tech.isIntangible) {
                         for (let i = 0; i < bullet.length; i++) {
                             if (bullet[i].botType && bullet[i].botType !== "orbit") bullet[i].collisionFilter.mask = cat.map | cat.body | cat.bullet | cat.mob | cat.mobBullet | cat.mobShield
@@ -3963,6 +3918,9 @@ const m = {
                     m.fieldRange = m.fieldRange * 0.85 + 130
                     m.fieldDrawRadius = m.fieldRange * 1.1 //* 0.88 //* Math.min(1, 0.3 + 0.5 * Math.min(1, energy * energy));
                     m.drawCloak()
+                    ctx.globalCompositeOperation = "lighter";
+                    m.drawCloakedM()
+                    ctx.globalCompositeOperation = "source-over";
                 } else if (m.fieldRange < 4000) {
                     m.fieldRange += 90
                     m.fieldDrawRadius = m.fieldRange //* Math.min(1, 0.3 + 0.5 * Math.min(1, energy * energy));
@@ -3985,153 +3943,14 @@ const m = {
                     }
                 }
                 this.drawRegenEnergyCloaking()
-                //show sneak attack status
-                // if (m.cycle > m.lastKillCycle + 240) {
-                // if (m.sneakAttackCharge > 0) {
-                // if (m.sneakAttackCycle + Math.min(120, 0.7 * (m.cycle - m.enterCloakCycle)) > m.cycle) {
-                //     ctx.strokeStyle = "rgba(0,0,0,0.5)" //m.fieldMeterColor; //"rgba(255,255,0,0.2)" //ctx.strokeStyle = `rgba(0,0,255,${0.5+0.5*Math.random()})`
-                //     ctx.beginPath();
-                //     ctx.arc(simulation.mouseInGame.x, simulation.mouseInGame.y, 16, 0, 2 * Math.PI);
-                //     ctx.fillStyle = "rgba(0,0,0,0.2)"
-                //     ctx.fill();
-                // }
+                if (m.isSneakAttack && m.sneakAttackCycle + Math.min(120, 0.5 * (m.cycle - m.enterCloakCycle)) > m.cycle) { //show sneak attack status
+                    ctx.globalCompositeOperation = "multiply";
+                    m.drawCloakedM()
+                    ctx.globalCompositeOperation = "source-over";
+                }
             }
         }
     },
-    // {
-    //   name: "phase decoherence field",
-    //   description: "use <strong class='color-f'>energy</strong> to become <strong>intangible</strong><br><strong>firing</strong> and touching <strong>shields</strong> <strong>drains</strong> <strong class='color-f'>energy</strong><br>unable to <strong>see</strong> and be <strong>seen</strong> by mobs",
-    //   effect: () => {
-    //     m.fieldFire = true;
-    //     m.fieldMeterColor = "#fff";
-    //     m.fieldPhase = 0;
-
-    //     m.hold = function () {
-    //       function drawField(radius) {
-    //         radius *= Math.min(4, 0.9 + 2.2 * m.energy * m.energy);
-    //         const rotate = m.cycle * 0.005;
-    //         m.fieldPhase += 0.5 - 0.5 * Math.sqrt(Math.max(0.01, Math.min(m.energy, 1)));
-    //         const off1 = 1 + 0.06 * Math.sin(m.fieldPhase);
-    //         const off2 = 1 - 0.06 * Math.sin(m.fieldPhase);
-    //         ctx.beginPath();
-    //         ctx.ellipse(m.pos.x, m.pos.y, radius * off1, radius * off2, rotate, 0, 2 * Math.PI);
-    //         if (m.fireCDcycle > m.cycle && (input.field)) {
-    //           ctx.lineWidth = 5;
-    //           ctx.strokeStyle = `rgba(0, 204, 255,1)`
-    //           ctx.stroke()
-    //         }
-    //         ctx.fillStyle = "#fff" //`rgba(0,0,0,${0.5+0.5*m.energy})`;
-    //         ctx.globalCompositeOperation = "destination-in"; //in or atop
-    //         ctx.fill();
-    //         ctx.globalCompositeOperation = "source-over";
-    //         ctx.clip();
-    //       }
-
-    //       m.isCloak = false //isCloak disables most uses of foundPlayer() 
-    //       player.collisionFilter.mask = cat.body | cat.map | cat.mob | cat.mobBullet | cat.mobShield //normal collisions
-    //       if (m.isHolding) {
-    //         if (this.fieldRange < 2000) {
-    //           this.fieldRange += 100
-    //           drawField(this.fieldRange)
-    //         }
-    //         m.drawHold(m.holdingTarget);
-    //         m.holding();
-    //         m.throwBlock();
-    //       } else if (input.field) {
-    //         m.grabPowerUp();
-    //         m.lookForPickUp();
-
-    //         if (m.fieldCDcycle < m.cycle) {
-    //           // simulation.draw.bodyFill = "transparent"
-    //           // simulation.draw.bodyStroke = "transparent"
-
-    //           const DRAIN = 0.00013 + (m.fireCDcycle > m.cycle ? 0.005 : 0)
-    //           if (m.energy > DRAIN) {
-    //             m.energy -= DRAIN;
-    //             // if (m.energy < 0.001) {
-    //             //   m.fieldCDcycle = m.cycle + 120;
-    //             //   m.energy = 0;
-    //             //   m.holdingTarget = null; //clears holding target (this is so you only pick up right after the field button is released and a hold target exists)
-    //             // }
-    //             this.fieldRange = this.fieldRange * 0.8 + 0.2 * 160
-    //             drawField(this.fieldRange)
-
-    //             m.isCloak = true //isCloak disables most uses of foundPlayer() 
-    //             player.collisionFilter.mask = cat.map
-
-
-    //             let inPlayer = Matter.Query.region(mob, player.bounds)
-    //             if (inPlayer.length > 0) {
-    //               for (let i = 0; i < inPlayer.length; i++) {
-    //                 if (inPlayer[i].shield) {
-    //                   m.energy -= 0.005; //shields drain player energy
-    //                   //draw outline of shield
-    //                   ctx.fillStyle = `rgba(140,217,255,0.5)`
-    //                   ctx.fill()
-    //                 } else if (tech.superposition && inPlayer[i].isDropPowerUp) {
-    //                   // inPlayer[i].damage(0.4 * m.dmgScale); //damage mobs inside the player
-    //                   // m.energy += 0.005;
-
-    //                   mobs.statusStun(inPlayer[i], 300)
-    //                   //draw outline of mob in a few random locations to show blurriness
-    //                   const vertices = inPlayer[i].vertices;
-    //                   const off = 30
-    //                   for (let k = 0; k < 3; k++) {
-    //                     const xOff = off * (Math.random() - 0.5)
-    //                     const yOff = off * (Math.random() - 0.5)
-    //                     ctx.beginPath();
-    //                     ctx.moveTo(xOff + vertices[0].x, yOff + vertices[0].y);
-    //                     for (let j = 1, len = vertices.length; j < len; ++j) {
-    //                       ctx.lineTo(xOff + vertices[j].x, yOff + vertices[j].y);
-    //                     }
-    //                     ctx.lineTo(xOff + vertices[0].x, yOff + vertices[0].y);
-    //                     ctx.fillStyle = "rgba(0,0,0,0.1)"
-    //                     ctx.fill()
-    //                   }
-    //                   break;
-    //                 }
-    //               }
-    //             }
-    //           } else {
-    //             m.fieldCDcycle = m.cycle + 120;
-    //             m.energy = 0;
-    //             m.holdingTarget = null; //clears holding target (this is so you only pick up right after the field button is released and a hold target exists)
-    //             drawField(this.fieldRange)
-    //           }
-    //         }
-    //       } else if (m.holdingTarget && m.fieldCDcycle < m.cycle) { //holding, but field button is released
-    //         m.pickUp();
-    //         if (this.fieldRange < 2000) {
-    //           this.fieldRange += 100
-    //           drawField(this.fieldRange)
-    //         }
-    //       } else {
-    //         // this.fieldRange = 3000
-    //         if (this.fieldRange < 2000 && m.holdingTarget === null) {
-    //           this.fieldRange += 100
-    //           drawField(this.fieldRange)
-    //         }
-    //         m.holdingTarget = null; //clears holding target (this is so you only pick up right after the field button is released and a hold target exists)
-    //       }
-
-    //       if (m.energy < m.maxEnergy) {
-    //         m.energy += m.fieldRegen;
-    //         const xOff = m.pos.x - m.radius * m.maxEnergy
-    //         const yOff = m.pos.y - 50
-    //         ctx.fillStyle = "rgba(0, 0, 0, 0.3)";
-    //         ctx.fillRect(xOff, yOff, 60 * m.maxEnergy, 10);
-    //         ctx.fillStyle = m.fieldMeterColor;
-    //         ctx.fillRect(xOff, yOff, 60 * m.energy, 10);
-    //         ctx.beginPath()
-    //         ctx.rect(xOff, yOff, 60 * m.maxEnergy, 10);
-    //         ctx.strokeStyle = "rgb(0, 0, 0)";
-    //         ctx.lineWidth = 1;
-    //         ctx.stroke();
-    //       }
-    //       if (m.energy < 0) m.energy = 0
-    //     }
-    //   }
-    // },
     {
         name: "pilot wave",
         //<br><strong class='color-block'>blocks</strong> can't <strong>collide</strong> with <strong>intangible</strong> mobs
@@ -4450,7 +4269,7 @@ const m = {
                                             Matter.Composite.remove(engine.world, body[i]);
                                             body.splice(i, 1);
                                             m.fieldRange *= 0.8
-                                            if ((m.fieldMode === 0 || m.fieldMode === 9) && m.immuneCycle < m.cycle) m.energy += 0.2 * m.coupling
+                                            if ((m.fieldMode === 0 || m.fieldMode === 9) && m.immuneCycle < m.cycle) m.energy += 0.02 * m.coupling
                                             if (tech.isWormholeWorms) { //pandimensional spermia
                                                 b.worm(Vector.add(m.hole.pos2, Vector.rotate({ x: m.fieldRange * 0.4, y: 0 }, 2 * Math.PI * Math.random())))
                                                 Matter.Body.setVelocity(bullet[bullet.length - 1], Vector.mult(Vector.rotate(m.hole.unit, Math.PI / 2), -10));
@@ -4474,8 +4293,8 @@ const m = {
                                         m.fieldRange *= 0.8
                                         // if (tech.isWormholeEnergy && m.energy < m.maxEnergy * 2) m.energy = m.maxEnergy * 2
                                         // if (tech.isWormholeEnergy && m.immuneCycle < m.cycle) m.energy += 0.5
-                                        if ((m.fieldMode === 0 || m.fieldMode === 9) && m.immuneCycle < m.cycle) m.energy += 0.2 * m.coupling
-                                        if (m.fieldMode === 0 || m.fieldMode === 9) m.energy += 0.2 * m.coupling
+                                        if ((m.fieldMode === 0 || m.fieldMode === 9) && m.immuneCycle < m.cycle) m.energy += 0.02 * m.coupling
+                                        if (m.fieldMode === 0 || m.fieldMode === 9) m.energy += 0.02 * m.coupling
                                         if (tech.isWormholeWorms) { //pandimensional spermia
                                             b.worm(Vector.add(m.hole.pos1, Vector.rotate({
                                                 x: m.fieldRange * 0.4,
@@ -4528,7 +4347,7 @@ const m = {
 
                     if (input.field) {
                         if (tech.isWormHolePause) {
-                            const drain = m.fieldRegen + 0.0002
+                            const drain = m.fieldRegen + 0.00004
                             if (m.energy > drain) {
                                 m.energy -= drain
                                 if (m.immuneCycle < m.cycle + 1) m.immuneCycle = m.cycle + 1; //player is immune to damage for 1 cycle
diff --git a/js/powerup.js b/js/powerup.js
index e911156..269ba28 100644
--- a/js/powerup.js
+++ b/js/powerup.js
@@ -351,7 +351,7 @@ const powerUps = {
                 simulation.paused = true;
                 document.getElementById("choose-grid").style.opacity = "1"
             }
-            document.getElementById("choose-grid").style.transitionDuration = "0.25s"; //how long is the fade in on
+            document.getElementById("choose-grid").style.transitionDuration = "0.5s"; //how long is the fade in on
             document.getElementById("choose-grid").style.visibility = "visible"
 
             requestAnimationFrame(() => {
@@ -429,7 +429,7 @@ const powerUps = {
             return 13;
         },
         effect() {
-            m.couplingChange(0.1)
+            m.couplingChange(1)
         },
         // spawnDelay(num) {
         //     let count = num
@@ -1069,7 +1069,6 @@ const powerUps = {
                         for (let j = 0, len = tech.tech[i].frequency; j < len; j++) options.push(i);
                     }
                 }
-
                 function removeOption(index) {
                     for (let i = options.length - 1; i > -1; i--) {
                         if (index === options[i]) {
@@ -1321,24 +1320,10 @@ const powerUps = {
                 tech.isFlipFlopOn = false
                 if (document.getElementById("tech-switch")) document.getElementById("tech-switch").innerHTML = ` = <strong>OFF</strong>`
                 m.eyeFillColor = 'transparent'
-                if (tech.isFlipFlopCoupling) {
-                    m.couplingChange(-5)
-                    for (let i = 0; i < mob.length; i++) {
-                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                    }
-                    spawn.WIMP()
-                    mob[mob.length - 1].isDecoupling = true //so you can find it to remove
-                }
             } else {
                 tech.isFlipFlopOn = true //immune to damage this hit, lose immunity for next hit
                 if (document.getElementById("tech-switch")) document.getElementById("tech-switch").innerHTML = ` = <strong>ON</strong>`
                 m.eyeFillColor = m.fieldMeterColor //'#0cf'
-                if (tech.isFlipFlopCoupling) {
-                    m.couplingChange(5)
-                    for (let i = 0; i < mob.length; i++) {
-                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                    }
-                }
             }
             if (tech.isRelayEnergy) m.setMaxEnergy();
         }
diff --git a/js/simulation.js b/js/simulation.js
index cb14402..4094dc5 100644
--- a/js/simulation.js
+++ b/js/simulation.js
@@ -20,7 +20,6 @@ const simulation = {
         mobs.draw();
         simulation.draw.cons();
         simulation.draw.body();
-        simulation.checks();
         if (!m.isBodiesAsleep) mobs.loop();
         mobs.healthBar();
         m.draw();
@@ -51,7 +50,6 @@ const simulation = {
         }
         m.move();
         m.look();
-        simulation.checks();
         simulation.camera();
         level.custom();
         m.draw();
@@ -90,7 +88,6 @@ const simulation = {
             }
             m.move();
             level.custom();
-            simulation.checks();
             mobs.loop();
             m.walk_cycle += m.flipLegs * m.Vx;
             m.hold();
@@ -111,7 +108,6 @@ const simulation = {
             Engine.update(engine, simulation.delta);
             // level.custom();
             // level.customTopLayer();
-            simulation.checks();
             if (!m.isBodiesAsleep) mobs.loop();
             if (m.fieldMode !== 7) m.hold();
             b.bulletRemove();
@@ -153,7 +149,6 @@ const simulation = {
     //     simulation.draw.cons();
     //     simulation.draw.body();
     //     if (!m.isBodiesAsleep) {
-    //         simulation.checks();
     //         // mobs.loop();
     //     }
     //     mobs.healthBar();
@@ -464,7 +459,7 @@ const simulation = {
     // SVGleftMouse: '<svg viewBox="750 0 200 765" class="mouse-icon" width="40px" height = "60px" stroke-linecap="round" stroke-linejoin="round" stroke-width="25px" stroke="#000" fill="none">  <path fill="#fff" stroke="none" d="M827,112 h30 a140,140,0,0,1,140,140 v268 a140,140,0,0,1-140,140 h-60 a140,140,0,0,1-140-140v-268 a140,140,0,0,1,140-140h60" />  <path d="M832.41,106.64 V323.55 H651.57 V256.64 c0-82.5,67.5-150,150-150 Z" fill="#149" stroke="none" />  <path fill="none" d="M827,112 h30 a140,140,0,0,1,140,140 v268 a140,140,0,0,1-140,140 h-60 a140,140,0,0,1-140-140v-268 a140,140,0,0,1,140-140h60" />  <path d="M657 317 h 340 h-170 v-207" />  <ellipse fill="#fff" cx="827.57" cy="218.64" rx="29" ry="68" />  </svg>',
     // SVGrightMouse: '<svg viewBox="750 0 200 765" class="mouse-icon" width="40px" height = "60px" stroke-linecap="round" stroke-linejoin="round" stroke-width="25px" stroke="#000" fill="none">  <path fill="#fff" stroke="none" d="M827,112 h30 a140,140,0,0,1,140,140 v268 a140,140,0,0,1-140,140 h-60 a140,140,0,0,1-140-140v-268 a140,140,0,0,1,140-140h60" />  <path d="M827,112 h30 a140,140,0,0,1,140,140 v68 h-167 z" fill="#0cf" stroke="none" />  <path fill="none" d="M827,112 h30 a140,140,0,0,1,140,140 v268 a140,140,0,0,1-140,140 h-60 a140,140,0,0,1-140-140v-268 a140,140,0,0,1,140-140h60" />  <path d="M657 317 h 340 h-170 v-207" />  <ellipse fill="#fff" cx="827.57" cy="218.64" rx="29" ry="68" />  </svg>',
     makeTextLog(text, time = 240) {
-        if (simulation.isTextLogOpen && !build.isExperimentSelection) {
+        if (!localSettings.isHideHUD && simulation.isTextLogOpen && !build.isExperimentSelection) {
             if (simulation.lastLogTime > m.cycle) { //if there is an older message
                 document.getElementById("text-log").innerHTML = document.getElementById("text-log").innerHTML + '<br>' + text;
                 simulation.lastLogTime = m.cycle + time;
@@ -735,12 +730,18 @@ const simulation = {
         document.getElementById("dmg").style.display = "inline";
         document.getElementById("health").style.display = "inline"
         document.getElementById("health-bg").style.display = "inline";
-        document.getElementById("defense-bar").style.display = "inline"
-        document.getElementById("damage-bar").style.display = "inline"
-
-        document.getElementById("tech").style.display = "inline"
+        if (!localSettings.isHideHUD) {
+            document.getElementById("tech").style.display = "inline"
+            document.getElementById("defense-bar").style.display = "inline"
+            document.getElementById("damage-bar").style.display = "inline"
+        } else {
+            document.getElementById("tech").style.display = "none"
+            document.getElementById("defense-bar").style.display = "none"
+            document.getElementById("damage-bar").style.display = "none"
+        }
         document.getElementById("guns").style.display = "inline"
         document.getElementById("field").style.display = "inline"
+
         // document.body.style.overflow = "hidden"
         document.getElementById("pause-grid-left").style.display = "none"
         document.getElementById("pause-grid-right").style.display = "none"
@@ -878,6 +879,138 @@ const simulation = {
         build.isExperimentSelection = false;
         build.isExperimentRun = false;
 
+
+        //setup checks
+        if (!localSettings.isHideHUD) {
+            simulation.ephemera.push({
+                name: "dmgDefBars", count: 0, do() {
+                    if (!(m.cycle % 15)) { //4 times a second
+                        const defense = m.defense()             //update defense bar
+                        if (m.lastCalculatedDefense !== defense) {
+                            document.getElementById("defense-bar").style.width = Math.floor(300 * m.maxHealth * (1 - defense)) + "px";
+                            m.lastCalculatedDefense = defense
+                        }
+                        const damage = tech.damageFromTech()             //update damage bar
+                        if (m.lastCalculatedDamage !== damage) {
+                            document.getElementById("damage-bar").style.height = Math.floor((Math.atan(0.25 * damage - 0.25) + 0.25) * 0.53 * canvas.height) + "px";
+                            m.lastCalculatedDamage = damage
+                        }
+                    }
+                },
+            })
+        }
+        simulation.ephemera.push({
+            name: "uniqueName", count: 0, do() {
+                if (!(m.cycle % 60)) { //once a second
+                    //energy overfill 
+                    if (m.energy > m.maxEnergy) {
+                        m.energy = m.maxEnergy + (m.energy - m.maxEnergy) * tech.overfillDrain //every second energy above max energy loses 25%
+                        if (m.energy > 1000000) m.energy = 1000000
+                    }
+                    if (tech.isFlipFlopEnergy && m.immuneCycle < m.cycle) {
+                        if (tech.isFlipFlopOn) {
+                            if (m.immuneCycle < m.cycle) m.energy += 0.2;
+                        } else {
+                            m.energy -= 0.01;
+                            if (m.energy < 0) m.energy = 0
+                        }
+                    }
+                    if (tech.relayIce && tech.isFlipFlopOn) {
+                        for (let j = 0; j < tech.relayIce; j++) {
+                            for (let i = 0, len = 3 + Math.ceil(9 * Math.random()); i < len; i++) b.iceIX(2)
+                        }
+                    }
+
+                    if (m.pos.y > simulation.fallHeight) { // if 4000px deep
+                        Matter.Body.setVelocity(player, {
+                            x: 0,
+                            y: 0
+                        });
+                        Matter.Body.setPosition(player, {
+                            x: level.enter.x + 50,
+                            y: level.enter.y - 20
+                        });
+                        // move bots
+                        for (let i = 0; i < bullet.length; i++) {
+                            if (bullet[i].botType) {
+                                Matter.Body.setPosition(bullet[i], Vector.add(player.position, {
+                                    x: 250 * (Math.random() - 0.5),
+                                    y: 250 * (Math.random() - 0.5)
+                                }));
+                                Matter.Body.setVelocity(bullet[i], {
+                                    x: 0,
+                                    y: 0
+                                });
+                            }
+                        }
+                        m.damage(0.1 * simulation.difficultyMode);
+                        m.energy -= 0.1 * simulation.difficultyMode
+                    }
+                    if (isNaN(player.position.x)) m.death();
+                    if (m.lastKillCycle + 300 > m.cycle) { //effects active for 5 seconds after killing a mob
+                        if (tech.isEnergyRecovery && m.immuneCycle < m.cycle) {
+                            m.energy += m.maxEnergy * 0.05
+                            simulation.drawList.push({ //add dmg to draw queue
+                                x: m.pos.x,
+                                y: m.pos.y - 45,
+                                radius: Math.sqrt(m.maxEnergy * 0.05) * 60,
+                                color: "rgba(0, 204, 255,0.4)", //#0cf
+                                time: 4
+                            });
+                        }
+                        if (tech.isHealthRecovery) {
+                            const heal = 0.005 * m.maxHealth
+                            m.addHealth(heal)
+                            simulation.drawList.push({ //add dmg to draw queue
+                                x: m.pos.x,
+                                y: m.pos.y,
+                                radius: Math.sqrt(heal) * 150,
+                                color: "rgba(0,255,200,0.5)",
+                                time: 4
+                            });
+                        }
+                    }
+
+                    if (!(m.cycle % 420)) { //once every 7 seconds
+                        if (tech.isZeno) {
+                            if (tech.isEnergyHealth) {
+                                m.energy *= 0.95
+                            } else {
+                                m.health *= 0.95 //remove 5%
+                                m.displayHealth();
+                            }
+
+                        }
+                        if (tech.cyclicImmunity && m.immuneCycle < m.cycle + tech.cyclicImmunity) m.immuneCycle = m.cycle + tech.cyclicImmunity; //player is immune to damage for 60 cycles
+
+                        fallCheck = function (who, save = false) {
+                            let i = who.length;
+                            while (i--) {
+                                if (who[i].position.y > simulation.fallHeight) {
+                                    if (save) {
+                                        Matter.Body.setVelocity(who[i], {
+                                            x: 0,
+                                            y: 0
+                                        });
+                                        Matter.Body.setPosition(who[i], {
+                                            x: level.exit.x + 30 * (Math.random() - 0.5),
+                                            y: level.exit.y + 30 * (Math.random() - 0.5)
+                                        });
+                                    } else {
+                                        Matter.Composite.remove(engine.world, who[i]);
+                                        who.splice(i, 1);
+                                    }
+                                }
+                            }
+                        };
+                        fallCheck(mob);
+                        fallCheck(body);
+                        fallCheck(powerUp, true);
+                    }
+                }
+            },
+        })
+
         //setup FPS cap
         simulation.fpsInterval = 1000 / simulation.fpsCap;
         simulation.then = Date.now();
@@ -1172,127 +1305,6 @@ const simulation = {
     //     }
     //   }
     // },
-    checks() {
-        if (!(m.cycle % 15)) { //4 times a second
-            const defense = m.defense()             //update defense bar
-            if (m.lastCalculatedDefense !== defense) {
-                document.getElementById("defense-bar").style.width = Math.floor(300 * m.maxHealth * (1 - defense)) + "px";
-                m.lastCalculatedDefense = defense
-            }
-            const damage = tech.damageFromTech()             //update damage bar
-            if (m.lastCalculatedDamage !== damage) {
-                document.getElementById("damage-bar").style.height = Math.floor((Math.atan(0.25 * damage - 0.25) + 0.25) * 0.53 * canvas.height) + "px";
-                m.lastCalculatedDamage = damage
-            }
-        }
-        if (!(m.cycle % 60)) { //once a second
-            //energy overfill 
-            if (m.energy > m.maxEnergy) {
-                m.energy = m.maxEnergy + (m.energy - m.maxEnergy) * tech.overfillDrain //every second energy above max energy loses 25%
-                if (m.energy > 1000000) m.energy = 1000000
-            }
-            if (tech.isFlipFlopEnergy && m.immuneCycle < m.cycle) {
-                if (tech.isFlipFlopOn) {
-                    if (m.immuneCycle < m.cycle) m.energy += 0.2;
-                } else {
-                    m.energy -= 0.01;
-                    if (m.energy < 0) m.energy = 0
-                }
-            }
-            if (tech.relayIce && tech.isFlipFlopOn) {
-                for (let j = 0; j < tech.relayIce; j++) {
-                    for (let i = 0, len = 3 + Math.ceil(9 * Math.random()); i < len; i++) b.iceIX(2)
-                }
-            }
-
-            if (m.pos.y > simulation.fallHeight) { // if 4000px deep
-                Matter.Body.setVelocity(player, {
-                    x: 0,
-                    y: 0
-                });
-                Matter.Body.setPosition(player, {
-                    x: level.enter.x + 50,
-                    y: level.enter.y - 20
-                });
-                // move bots
-                for (let i = 0; i < bullet.length; i++) {
-                    if (bullet[i].botType) {
-                        Matter.Body.setPosition(bullet[i], Vector.add(player.position, {
-                            x: 250 * (Math.random() - 0.5),
-                            y: 250 * (Math.random() - 0.5)
-                        }));
-                        Matter.Body.setVelocity(bullet[i], {
-                            x: 0,
-                            y: 0
-                        });
-                    }
-                }
-                m.damage(0.1 * simulation.difficultyMode);
-                m.energy -= 0.1 * simulation.difficultyMode
-            }
-            if (isNaN(player.position.x)) m.death();
-            if (m.lastKillCycle + 300 > m.cycle) { //effects active for 5 seconds after killing a mob
-                if (tech.isEnergyRecovery && m.immuneCycle < m.cycle) {
-                    m.energy += m.maxEnergy * 0.05
-                    simulation.drawList.push({ //add dmg to draw queue
-                        x: m.pos.x,
-                        y: m.pos.y - 45,
-                        radius: Math.sqrt(m.maxEnergy * 0.05) * 60,
-                        color: "rgba(0, 204, 255,0.4)", //#0cf
-                        time: 4
-                    });
-                }
-                if (tech.isHealthRecovery) {
-                    const heal = 0.005 * m.maxHealth
-                    m.addHealth(heal)
-                    simulation.drawList.push({ //add dmg to draw queue
-                        x: m.pos.x,
-                        y: m.pos.y,
-                        radius: Math.sqrt(heal) * 150,
-                        color: "rgba(0,255,200,0.5)",
-                        time: 4
-                    });
-                }
-            }
-
-            if (!(m.cycle % 420)) { //once every 7 seconds
-                if (tech.isZeno) {
-                    if (tech.isEnergyHealth) {
-                        m.energy *= 0.95
-                    } else {
-                        m.health *= 0.95 //remove 5%
-                        m.displayHealth();
-                    }
-
-                }
-                if (tech.cyclicImmunity && m.immuneCycle < m.cycle + tech.cyclicImmunity) m.immuneCycle = m.cycle + tech.cyclicImmunity; //player is immune to damage for 60 cycles
-
-                fallCheck = function (who, save = false) {
-                    let i = who.length;
-                    while (i--) {
-                        if (who[i].position.y > simulation.fallHeight) {
-                            if (save) {
-                                Matter.Body.setVelocity(who[i], {
-                                    x: 0,
-                                    y: 0
-                                });
-                                Matter.Body.setPosition(who[i], {
-                                    x: level.exit.x + 30 * (Math.random() - 0.5),
-                                    y: level.exit.y + 30 * (Math.random() - 0.5)
-                                });
-                            } else {
-                                Matter.Composite.remove(engine.world, who[i]);
-                                who.splice(i, 1);
-                            }
-                        }
-                    }
-                };
-                fallCheck(mob);
-                fallCheck(body);
-                fallCheck(powerUp, true);
-            }
-        }
-    },
     testingOutput() {
         ctx.fillStyle = "#000";
         ctx.textAlign = "center";
diff --git a/js/tech.js b/js/tech.js
index e88a2b2..378502a 100644
--- a/js/tech.js
+++ b/js/tech.js
@@ -220,20 +220,21 @@ const tech = {
     damage: 1, //used for tech changes to player damage that don't have complex conditions
     damageFromTech() {
         let dmg = tech.damage //m.fieldDamage
-        if (tech.isDivisor) {
-            for (let i = 0; i < b.inventory.length; i++) {
-                if (b.guns[b.inventory[i]].ammo % 3 === 0) {
-                    dmg *= 1.44
-                    break
-                }
-            }
-        }
+        // if (tech.isDivisor) {
+        //     for (let i = 0; i < b.inventory.length; i++) {
+        //         if (b.guns[b.inventory[i]].ammo % 3 === 0) {
+        //             dmg *= 1.44
+        //             break
+        //         }
+        //     }
+        // }
+        if (tech.isDivisor && b.guns[b.activeGun].ammo % 3 === 0) dmg *= 1.83
         if (tech.isNoGroundDamage) dmg *= m.onGround ? 0.78 : 1.88
         if (tech.isDilate) dmg *= 1.5 + 0.6 * Math.sin(m.cycle * 0.0075)
         if (tech.isGunChoice && tech.buffedGun === b.inventoryGun) dmg *= 1 + 0.31 * b.inventory.length
         if (powerUps.boost.endCycle > m.cycle) dmg *= 1 + powerUps.boost.damage
-        if (m.coupling && (m.fieldMode === 0 || m.fieldMode === 5)) dmg *= 1 + 0.15 * m.coupling
-        if (m.isSneakAttack && m.sneakAttackCycle + Math.min(120, 0.5 * (m.cycle - m.enterCloakCycle)) > m.cycle) dmg *= 4.33 * (1 + 0.33 * m.coupling)
+        if (m.coupling && (m.fieldMode === 0 || m.fieldMode === 5)) dmg *= 1 + 0.015 * m.coupling
+        if (m.isSneakAttack && m.sneakAttackCycle + Math.min(120, 0.5 * (m.cycle - m.enterCloakCycle)) > m.cycle) dmg *= 4.33 * (1 + 0.033 * m.coupling)
         if (tech.deathSkipTime) dmg *= 1 + 0.6 * tech.deathSkipTime
         if (tech.isTechDebt) dmg *= tech.totalCount > 2 ? Math.pow(0.85, tech.totalCount - 20) : 4 - 0.15 * tech.totalCount // if (tech.isTechDebt) dmg *= Math.min(Math.pow(0.85, tech.totalCount - 20), 4 - 0.15 * tech.totalCount)
         if (tech.isFlipFlopDamage && tech.isFlipFlopOn) dmg *= 1.555
@@ -258,7 +259,7 @@ const tech = {
         return dmg
     },
     duplicationChance() {
-        return Math.min(1, Math.max(0, (tech.isPowerUpsVanish ? 0.12 : 0) + (tech.isStimulatedEmission ? 0.15 : 0) + tech.duplication + tech.duplicateChance + 0.05 * tech.isExtraGunField + m.duplicateChance + tech.fieldDuplicate + tech.cloakDuplication + (tech.isAnthropicTech && tech.isDeathAvoidedThisLevel ? 0.5 : 0) + tech.isQuantumEraserDuplication * (1 - 0.016 * (simulation.difficultyMode ** 2)))) // + (m.fieldMode === 0 || m.fieldMode === 9) * 0.03 * m.coupling)
+        return Math.min(1, Math.max(0, (tech.isPowerUpsVanish ? 0.12 : 0) + (tech.isStimulatedEmission ? 0.15 : 0) + tech.duplication + tech.duplicateChance + 0.05 * tech.isExtraGunField + m.duplicateChance + tech.fieldDuplicate + tech.cloakDuplication + (tech.isAnthropicTech && tech.isDeathAvoidedThisLevel ? 0.5 : 0) + tech.isQuantumEraserDuplication * (1 - 0.016 * (simulation.difficultyMode ** 2))))
     },
     isScaleMobsWithDuplication: false,
     maxDuplicationEvent() {
@@ -541,7 +542,7 @@ const tech = {
     {
         name: "ternary", //"divisor",
         descriptionFunction() {
-            return `<strong>+44%</strong> <strong class='color-d'>damage</strong> while one of your <strong class='color-g'>guns</strong><br>has <strong class='color-ammo'>ammo</strong> divisible by <strong>3</strong>`
+            return `<strong>+83%</strong> <strong class='color-d'>damage</strong> while your current <strong class='color-g'>gun</strong><br>has <strong class='color-ammo'>ammo</strong> divisible by <strong>3</strong>`
         },
         maxCount: 1,
         count: 0,
@@ -2146,12 +2147,6 @@ const tech = {
             tech.isFlipFlop = true //do you have this tech?
             if (!tech.isFlipFlopOn) {
                 tech.isFlipFlopOn = true //what is the state of flip-Flop?
-                if (tech.isFlipFlopCoupling) {
-                    m.couplingChange(5)
-                    for (let i = 0; i < mob.length; i++) {
-                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                    }
-                }
             }
             // if (!m.isShipMode) {
             //     m.skin.flipFlop()
@@ -2161,12 +2156,6 @@ const tech = {
             tech.isFlipFlop = false
             if (tech.isFlipFlopOn) {
                 tech.isFlipFlopOn = false //what is the state of flip-Flop?
-                if (tech.isFlipFlopCoupling) {
-                    m.couplingChange(5)
-                    for (let i = 0; i < mob.length; i++) {
-                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                    }
-                }
             }
             m.eyeFillColor = 'transparent'
             // m.resetSkin();
@@ -2226,49 +2215,49 @@ const tech = {
             tech.isFlipFlopEnergy = false;
         }
     },
-    {
-        name: "decoupling",
-        link: `<a target="_blank" href='https://en.wikipedia.org/wiki/Decoupling_(cosmology)' class="link">decoupling</a>`,
-        descriptionFunction() {
-            //<span style = 'font-size:80%;'>(${ m.couplingDescription(this.bonus)})</span>
-            return `if <strong class='color-flop'>ON</strong> <strong>+5</strong> <strong class='color-coupling'>coupling</strong><br>if <strong class='color-flop'>OFF</strong> a dangerous particle slowly <strong>chases</strong> you`
-        },
-        maxCount: 1,
-        count: 0,
-        frequency: 3,
-        frequencyDefault: 3,
-        bonus: 5, //coupling given
-        allowed() {
-            return tech.isFlipFlop || tech.isRelay
-        },
-        requires: "ON/OFF tech",
-        effect() {
-            tech.isFlipFlopCoupling = true;
-            if (tech.isFlipFlopOn) {
-                m.couplingChange(this.bonus)
-            } else {
-                for (let i = 0; i < mob.length; i++) {
-                    if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                }
-                spawn.WIMP()
-                mob[mob.length - 1].isDecoupling = true //so you can find it to remove
-            }
-        },
-        remove() {
-            tech.isFlipFlopCoupling = false;
-            if (this.count) {
-                if (tech.isFlipFlop || tech.isRelay) {
-                    if (tech.isFlipFlopOn) {
-                        m.couplingChange(-this.bonus)
-                    } else {
-                        for (let i = 0; i < mob.length; i++) {
-                            if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                        }
-                    }
-                }
-            }
-        }
-    },
+    // {
+    //     name: "decoupling",
+    //     link: `<a target="_blank" href='https://en.wikipedia.org/wiki/Decoupling_(cosmology)' class="link">decoupling</a>`,
+    //     descriptionFunction() {
+    //         //<span style = 'font-size:80%;'>(${ m.couplingDescription(this.bonus)})</span>
+    //         return `if <strong class='color-flop'>ON</strong> <strong>+5</strong> <strong class='color-coupling'>coupling</strong><br>if <strong class='color-flop'>OFF</strong> a dangerous particle slowly <strong>chases</strong> you`
+    //     },
+    //     maxCount: 1,
+    //     count: 0,
+    //     frequency: 3,
+    //     frequencyDefault: 3,
+    //     bonus: 5, //coupling given
+    //     allowed() {
+    //         return tech.isFlipFlop || tech.isRelay
+    //     },
+    //     requires: "ON/OFF tech",
+    //     effect() {
+    //         tech.isFlipFlopCoupling = true;
+    //         if (tech.isFlipFlopOn) {
+    //             m.couplingChange(this.bonus)
+    //         } else {
+    //             for (let i = 0; i < mob.length; i++) {
+    //                 if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
+    //             }
+    //             spawn.WIMP()
+    //             mob[mob.length - 1].isDecoupling = true //so you can find it to remove
+    //         }
+    //     },
+    //     remove() {
+    //         tech.isFlipFlopCoupling = false;
+    //         if (this.count) {
+    //             if (tech.isFlipFlop || tech.isRelay) {
+    //                 if (tech.isFlipFlopOn) {
+    //                     m.couplingChange(-this.bonus)
+    //                 } else {
+    //                     for (let i = 0; i < mob.length; i++) {
+    //                         if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
+    //                     }
+    //                 }
+    //             }
+    //         }
+    //     }
+    // },
     {
         name: "relay switch",
         description: `toggle <strong class="color-flop">ON</strong> and <strong class="color-flop">OFF</strong> after picking up a <strong>power up</strong><br>unlock advanced <strong class='color-m'>tech</strong> that runs if <strong class="color-flop">ON</strong>`,
@@ -2299,12 +2288,6 @@ const tech = {
             tech.isRelay = true //do you have this tech?
             if (!tech.isFlipFlopOn) {
                 tech.isFlipFlopOn = true //what is the state of flip-Flop?
-                if (tech.isFlipFlopCoupling) {
-                    m.couplingChange(5)
-                    for (let i = 0; i < mob.length; i++) {
-                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                    }
-                }
             }
             // if (!m.isShipMode) {
             //     m.skin.flipFlop()
@@ -2314,12 +2297,6 @@ const tech = {
             tech.isRelay = false
             if (tech.isFlipFlopOn) {
                 tech.isFlipFlopOn = false //what is the state of flip-Flop?
-                if (tech.isFlipFlopCoupling) {
-                    m.couplingChange(-5)
-                    for (let i = 0; i < mob.length; i++) {
-                        if (mob[i].isDecoupling) mob[i].alive = false //remove WIMP
-                    }
-                }
             }
             m.eyeFillColor = 'transparent'
             // m.resetSkin();
@@ -3726,7 +3703,8 @@ const tech = {
     {
         name: "field coupling",
         descriptionFunction() {
-            return `spawn ${powerUps.orb.coupling(10)}<br>that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>` //<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            // return `spawn ${powerUps.orb.coupling(10)}<br>that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>` //<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            return `spawn ${powerUps.orb.coupling(10)}<br><em>${m.couplingDescription(1)} per ${powerUps.orb.coupling(1)}</em>`
         },
         maxCount: 9,
         count: 0,
@@ -3740,9 +3718,7 @@ const tech = {
             powerUps.spawnDelay("coupling", 10)
         },
         remove() {
-            if (this.count) {
-                m.couplingChange(-this.count)
-            }
+            if (this.count) m.couplingChange(-this.count * 10)
         }
     },
     {
@@ -3757,7 +3733,9 @@ const tech = {
             } else {
                 orbText = powerUps.orb.coupling(converted)
             }
-            return `use all your ${powerUps.orb.research(1)} to spawn <strong>${orbText}</strong><br>that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>`//<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            // return `use all your ${powerUps.orb.research(1)} to spawn <strong>${orbText}</strong><br>that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>`//<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            return `use all your ${powerUps.orb.research(1)} to spawn <strong>${orbText}</strong><br><em>${m.couplingDescription(1)} per ${powerUps.orb.coupling(1)}</em>`
+
         },
         maxCount: 1,
         count: 0,
@@ -3768,7 +3746,7 @@ const tech = {
         },
         requires: "",
         researchUsed: 0,
-        couplingToResearch: 0.25,
+        couplingToResearch: 3,
         effect() {
             // let count = 0
             // while (powerUps.research.count > 0 && powerUps.research.count !== Infinity) {
@@ -3802,7 +3780,8 @@ const tech = {
     {
         name: "virtual particles",
         descriptionFunction() {
-            return `after mobs <strong>die</strong> they have a <strong>17%</strong> chance to<br>spawn ${powerUps.orb.coupling(1)} that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>` //<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            return `<strong>17%</strong> chance after mobs <strong>die</strong> to spawn ${powerUps.orb.coupling(1)}<br><em>${m.couplingDescription(1)} per ${powerUps.orb.coupling(1)}</em>`
+            // return `<strong>17%</strong> chance after mobs <strong>die</strong> to spawn ${powerUps.orb.coupling(1)} that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>` //<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
         },
         maxCount: 1,
         count: 0,
@@ -3820,7 +3799,8 @@ const tech = {
     {
         name: "fine-structure constant",
         descriptionFunction() {
-            return `spawn ${this.value} ${powerUps.orb.coupling(1)} that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong><br><strong>-0.5</strong> <strong class='color-coupling'>coupling</strong> after mob <strong>collisions</strong>`//<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            // return `spawn ${this.value} ${powerUps.orb.coupling(1)} that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong><br><strong>-0.5</strong> <strong class='color-coupling'>coupling</strong> after mob <strong>collisions</strong>`//<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            return `spawn ${this.value} ${powerUps.orb.coupling(1)}, but <strong>lose</strong> ${powerUps.orb.coupling(5)} after mob <strong>collisions</strong><br><em>${m.couplingDescription(1)} per ${powerUps.orb.coupling(1)}</em>`
         },
         maxCount: 1,
         count: 0,
@@ -3835,16 +3815,15 @@ const tech = {
             powerUps.spawnDelay("coupling", this.value)
         },
         remove() {
-            if (this.count) {
-                m.couplingChange(-this.value)
-            }
+            if (this.count) m.couplingChange(-this.value)
             tech.isCouplingNoHit = false
         }
     },
     {
         name: "residual dipolar coupling",
         descriptionFunction() {
-            return `clicking <strong class='color-cancel'>cancel</strong> for a <strong class='color-f'>field</strong>, <strong class='color-m'>tech</strong>, or <strong class='color-g'>gun</strong><br>spawns ${powerUps.orb.coupling(5)}that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>`//<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            // return `clicking <strong class='color-cancel'>cancel</strong> for a <strong class='color-f'>field</strong>, <strong class='color-m'>tech</strong>, or <strong class='color-g'>gun</strong><br>spawns ${powerUps.orb.coupling(5)}that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>`//<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            return `clicking <strong class='color-cancel'>cancel</strong> spawns ${powerUps.orb.coupling(5)}<br><em>${m.couplingDescription(1)} per ${powerUps.orb.coupling(1)}</em>`
         },
         maxCount: 1,
         count: 0,
@@ -4092,7 +4071,7 @@ const tech = {
             tech.damage *= this.damage
         },
         remove() {
-            if (this.count > 0) {
+            if (this.count > 0 && m.alive) {
                 tech.damage /= this.damage
                 powerUps.spawnDelay("research", 15)
                 this.frequency = 0
@@ -7267,9 +7246,9 @@ const tech = {
         frequency: 2,
         frequencyDefault: 2,
         allowed() {
-            return (m.fieldMode === 4 && tech.deflectEnergy === 0) || (m.fieldMode === 1 && tech.harmonics === 2) || m.fieldMode === 0
+            return (m.fieldMode === 4 && tech.deflectEnergy === 0) || (m.fieldMode === 1 && tech.harmonics === 2)
         },
-        requires: "molecular assembler, standing wave, field emitter, not electric generator",
+        requires: "molecular assembler, standing wave, not electric generator",
         effect() {
             tech.isLaserField = true
         },
@@ -7408,7 +7387,7 @@ const tech = {
     {
         name: "triple point",
         descriptionFunction() {
-            return `<strong>+1.5</strong> second <strong class='color-s'>ice IX</strong> freeze effect<br>spawn ${powerUps.orb.coupling(10)} that each give <strong>+0.1</strong> <strong class='color-coupling'>coupling</strong>` //<br>${m.couplingDescription(1)} ${m.fieldMode === 0 ? "" : "per <strong class='color-coupling'>coupling</strong>"}
+            return `<strong>+1.5</strong> second <strong class='color-s'>ice IX</strong> freeze and spawn ${powerUps.orb.coupling(10)}<br><em>${m.couplingDescription(1)} per ${powerUps.orb.coupling(1)}</em>`
         },
         isFieldTech: true,
         maxCount: 3,
@@ -7425,7 +7404,7 @@ const tech = {
         },
         remove() {
             tech.iceIXFreezeTime = 150
-            if (this.count) m.couplingChange(-this.count)
+            if (this.count) m.couplingChange(-10 * this.count)
         }
     },
     {
@@ -8369,28 +8348,28 @@ const tech = {
     },
     {
         name: "vacuum fluctuation",
-        description: `use ${powerUps.orb.research(4)}to exploit your <strong class='color-f'>field</strong> for a<br><strong>+11%</strong> chance to <strong class='color-dup'>duplicate</strong> spawned <strong>power ups</strong>`,
+        description: `use ${powerUps.orb.research(3)}to exploit your <strong class='color-f'>field</strong> for a<br><strong>+11%</strong> chance to <strong class='color-dup'>duplicate</strong> spawned <strong>power ups</strong>`,
         isFieldTech: true,
         maxCount: 1,
         count: 0,
         frequency: 3,
         frequencyDefault: 3,
         allowed() {
-            return (m.fieldMode === 8 || m.fieldMode === 3 || m.fieldMode === 6 || m.fieldMode === 9) && (build.isExperimentSelection || powerUps.research.count > 3)
+            return (m.fieldMode === 8 || m.fieldMode === 3 || m.fieldMode === 6 || m.fieldMode === 9) && (build.isExperimentSelection || powerUps.research.count > 2)
         },
         requires: "wormhole, time dilation, negative mass, pilot wave",
         effect() {
             tech.fieldDuplicate = 0.11
             powerUps.setPowerUpMode(); //needed after adjusting duplication chance
             if (!build.isExperimentSelection && !simulation.isTextLogOpen) simulation.circleFlare(0.11);
-            for (let i = 0; i < 4; i++) {
+            for (let i = 0; i < 3; i++) {
                 if (powerUps.research.count > 0) powerUps.research.changeRerolls(-1)
             }
         },
         remove() {
             tech.fieldDuplicate = 0
             powerUps.setPowerUpMode(); //needed after adjusting duplication chance
-            if (this.count > 0) powerUps.research.changeRerolls(4)
+            if (this.count > 0) powerUps.research.changeRerolls(3)
         }
     },
     // {
@@ -11523,7 +11502,6 @@ const tech = {
     isCouplingPowerUps: null,
     isBoostPowerUps: null,
     isBoostReplaceAmmo: null,
-    isFlipFlopCoupling: null,
     isInfiniteWaveAmmo: null,
     isJunkDNA: null,
     buffedGun: 0,
diff --git a/style.css b/style.css
index 50e3cc9..0c38210 100644
--- a/style.css
+++ b/style.css
@@ -9,6 +9,7 @@ body {
     margin: 0;
     overflow: hidden;
     cursor: auto;
+    transition: background-color 0.2s ease-in-out;
 }
 
 canvas {
@@ -183,6 +184,9 @@ summary {
     scrollbar-width: none;
 }
 
+
+
+
 .choose-grid-no-images {
     border-radius: 8px;
     border: 10px solid #444;
@@ -219,6 +223,9 @@ summary {
     line-height: 160%;
     background-color: var(--card-color);
     font-size: 0.75em;
+    /* transform-style: preserve-3d;
+    transition: transform 2s;
+    transform: rotateX(180deg); */
 }
 
 .choose-grid-module:hover {
diff --git a/todo.txt b/todo.txt
index 4fd16d1..3f41788 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,27 +1,40 @@
 ******************************************************** NEXT PATCH **************************************************
 
-new community level - superNgonBros by DesBoot
+setting - minimal HUD
+  remove: defense bar, damage bar, tech, in game console
 
-tech: induction brake - after using a heal slow nearby mobs for 15 seconds
-tech: null hypothesis - +9 damage, spawn several research after removing
-reworked: strange attractor - +7% damage, +10% duplication after removing
+improved text clarity on coupling
+removed tech decoupling
 
-bremsstrahlung does 50% more damage
-time crystals 200 -> 150% passive energy regen
-  it also tells you how much energy regen you will get
-aperture (-50 to +150) -> (-10 to +110) damage
-diaphragm (-33 to +100) -> (+8 to +80) defense
-tungsten carbide 200 -> 222 health
-CPT symmetry 30 -> 20 energy per second of rewind
-quenching gives more max health, but also does more damage per over heal
+added cloaking and sneak attack graphics
+  also, the 50% defense when cloaked is now clear from the defense bar
+ternary 44->83% damage but requires current gun to have ammo/3 (was any gun)
+wormhole invariant: uses much less energy to pause time
+standing wave has less recoil when blocking
 
-final boss has 50% faster armor decay
-  so it takes even more damage the longer you fight it
-
-a few more images
-some bug fixes
+new images
+bug fixes
 
 *********************************************************** TODO *****************************************************
+
+ use ephemera to replace things
+  JUNK?
+  request animation stuff
+  simulation checks
+    damage and defense bars
+      disable and enable ephemera with settings
+
+drones target anything that moves: speed > 1
+  including player, blocks?, mobs, power ups
+  maybe target the fastest mobs?
+
+perfect diamagnatism - invulnerable while field is active?
+  also drain energy while field is active?
+
+mobs attack mines
+  mines periodically set all mobs to have player location to be the mine
+    is this going to work with all mob vision types?
+
 maybe use ⚆ in game text?
   increase font?
   
@@ -30,10 +43,6 @@ rework quantum eraser
 test bremsstrahlung damage
   and make sure it actually does more damage with the dot tech
 
-use ephemera to replace things
-  JUNK?
-  request animation stuff
-
 tech: choose next map by name after exiting current map
   use modified tech selection code?
   this might be too much work without much reward
@@ -1228,6 +1237,7 @@ if pause is pressed while selecting power ups, display pause menu on top of sele
   time dilation - graphic of a hyperbolic equation Luminogram
   negative mass - Blacklight painting by Moebius
   plasma torch - by Dan Mumford
+
   metamaterial cloaking - Scientific photography by Miki Asai,   by Bruce Munro
   molecular assembler - by Laurie Greasley 16-bit Isometric 
   wormhole - by Tim White