diff --git a/js/bullets.js b/js/bullets.js
index 922f550..85b1cd5 100644
--- a/js/bullets.js
+++ b/js/bullets.js
@@ -29,7 +29,7 @@ const b = {
   isModFarAwayDmg: null,
   isModEntanglement: null,
   isModMassEnergy: null,
-  isModFourOptions: null,
+  isModExtraChoice: null,
   modLaserBotCount: null,
   modNailBotCount: null,
   modCollisionImmuneCycles: null,
@@ -48,7 +48,7 @@ const b = {
   isModEnergyRecovery: null,
   isModHealthRecovery: null,
   isModEnergyLoss: null,
-  isModFoamShieldHit: null,
+  isModFoamShieldSKip: null,
   isModDeathAvoid: null,
   isModDeathAvoidOnCD: null,
   modWaveSpeedMap: null,
@@ -577,11 +577,13 @@ const b = {
         b.modOnHealthChange();
         mech.displayHealth();
         document.getElementById("health-bg").style.display = "none"
+        document.getElementById("dmg").style.backgroundColor = "#0cf";
         b.isModEnergyHealth = true;
       },
       remove() {
         b.isModEnergyHealth = false;
         document.getElementById("health-bg").style.display = "inline"
+        document.getElementById("dmg").style.backgroundColor = "#f67";
         mech.health = mech.energy;
       }
     },
@@ -596,7 +598,7 @@ const b = {
       requires: "not mass-energy equivalence",
       effect() {
         b.isModPiezo = true;
-        mech.energy = mech.fieldEnergyMax;
+        mech.energy = mech.maxEnergy;
       },
       remove() {
         b.isModPiezo = false;
@@ -631,7 +633,7 @@ const b = {
       requires: "",
       effect() {
         b.modEnergySiphon += 0.15;
-        mech.energy = mech.fieldEnergyMax
+        mech.energy = mech.maxEnergy
       },
       remove() {
         b.modEnergySiphon = 0;
@@ -663,11 +665,11 @@ const b = {
       },
       requires: "",
       effect() {
-        mech.fieldEnergyMax += 0.5
+        mech.maxEnergy += 0.5
         mech.energy += 0.5
       },
       remove() {
-        mech.fieldEnergyMax = 1;
+        mech.maxEnergy = 1;
       }
     },
     {
@@ -716,7 +718,7 @@ const b = {
       requires: "",
       effect: () => {
         b.isModMassEnergy = true // used in mech.grabPowerUp
-        mech.energy = mech.fieldEnergyMax * 2
+        mech.energy = mech.maxEnergy * 2
       },
       remove() {
         b.isModMassEnergy = false;
@@ -724,7 +726,7 @@ const b = {
     },
     {
       name: "Bayesian inference",
-      description: "<strong>20%</strong> chance for double <strong>power ups</strong> to drop<br>one fewer <strong>choice</strong> when selecting <strong>power ups</strong>",
+      description: "<strong>33%</strong> chance for double <strong>power ups</strong> to drop<br>only <strong>one choice</strong> when selecting <strong>power ups</strong>",
       maxCount: 1,
       count: 0,
       allowed() {
@@ -732,7 +734,7 @@ const b = {
       },
       requires: "",
       effect: () => {
-        b.isModBayesian = 0.20;
+        b.isModBayesian = 0.33;
       },
       remove() {
         b.isModBayesian = 0;
@@ -748,10 +750,10 @@ const b = {
       },
       requires: "",
       effect: () => {
-        b.isModFourOptions = true;
+        b.isModExtraChoice = true;
       },
       remove() {
-        b.isModFourOptions = false;
+        b.isModExtraChoice = false;
       }
     },
     {
@@ -1288,8 +1290,8 @@ const b = {
       }
     },
     {
-      name: "quantum foam",
-      description: "<strong>foam</strong> can stick to <strong>shields</strong>",
+      name: "quantum tunneling",
+      description: "<strong>foam</strong> bypasses <strong>shields</strong> to stick to mobs",
       maxCount: 1,
       count: 0,
       allowed() {
@@ -1297,10 +1299,10 @@ const b = {
       },
       requires: "foam",
       effect() {
-        b.isModFoamShieldHit = true;
+        b.isModFoamShieldSKip = true;
       },
       remove() {
-        b.isModFoamShieldHit = false;
+        b.isModFoamShieldSKip = false;
       }
     },
     {
@@ -1374,7 +1376,7 @@ const b = {
     {
       name: "timelike world line",
       description: "<strong>time dilation</strong> increases your time <strong>rate</strong> by <strong>2x</strong><br>while <strong class='color-f'>energy</strong> <strong>drain</strong> is decreased by <strong>2x</strong>",
-      maxCount: 9,
+      maxCount: 1,
       count: 0,
       allowed() {
         return mech.fieldUpgrades[mech.fieldMode].name === "time dilation field"
@@ -2092,7 +2094,7 @@ const b = {
               }
             }
           }
-          for (let i = 0; i < 16; i++) {
+          for (let i = 0; i < 14; i++) {
             const speed = 53 + 10 * Math.random()
             if (targets.length > 0) { // aim near a random target in array
               const index = Math.floor(Math.random() * targets.length)
@@ -3092,7 +3094,7 @@ const b = {
         };
 
         if (b.isModRPG) {
-          b.fireProps(25, mech.crouch ? 60 : -15, dir, me); //cd , speed
+          b.fireProps(35, mech.crouch ? 60 : -15, dir, me); //cd , speed
           bullet[me].endCycle = game.cycle + 70;
           bullet[me].frictionAir = 0.07;
           const MAG = 0.015
@@ -3350,11 +3352,11 @@ const b = {
       isStarterGun: true,
       isEasyToAim: false,
       fire() {
-        mech.fireCDcycle = mech.cycle + Math.floor((mech.crouch ? 12 : 5) * b.modFireRate); // cool down
+        mech.fireCDcycle = mech.cycle + Math.floor((mech.crouch ? 13 : 6) * b.modFireRate); // cool down
         const me = bullet.length;
         const dir = mech.angle + 0.2 * (Math.random() - 0.5)
         const RADIUS = (8 + 16 * Math.random())
-        bullet[me] = Bodies.polygon(mech.pos.x + 30 * Math.cos(mech.angle), mech.pos.y + 30 * Math.sin(mech.angle), 25, RADIUS, {
+        bullet[me] = Bodies.polygon(mech.pos.x + 30 * Math.cos(mech.angle), mech.pos.y + 30 * Math.sin(mech.angle), 20, RADIUS, {
           angle: dir,
           density: 0.00005, //  0.001 is normal density
           inertia: Infinity,
@@ -3365,7 +3367,7 @@ const b = {
           classType: "bullet",
           collisionFilter: {
             category: cat.bullet,
-            mask: cat.map | cat.body | cat.mob | cat.mobShield
+            mask: cat.mob | cat.mobShield //cat.map | cat.body | cat.mob | cat.mobShield
           },
           minDmgSpeed: 0,
           endCycle: Infinity,
@@ -3374,7 +3376,7 @@ const b = {
           target: null,
           targetVertex: null,
           onDmg(who) {
-            if (!this.target && who.alive && (who.dropPowerUp || b.isModFoamShieldHit) && (!who.isShielded || b.isModFoamShieldHit)) {
+            if (!this.target && who.alive && who.dropPowerUp && (!who.isShielded || b.isModFoamShieldSKip)) {
               this.target = who;
               this.collisionFilter.category = cat.body;
               this.collisionFilter.mask = null;
@@ -3399,7 +3401,23 @@ const b = {
             // ctx.fill()
 
             if (!mech.isBodiesAsleep) { //if time dilation isn't active
-              this.force.y += this.mass * 0.00006; //gravity
+
+              //check for touching map
+              if (Matter.Query.collides(this, map).length > 0) {
+                const slow = 0.94
+                Matter.Body.setVelocity(this, {
+                  x: this.velocity.x * slow,
+                  y: this.velocity.y * slow
+                });
+              } else if (Matter.Query.collides(this, body).length > 0) {
+                const slow = 0.97
+                Matter.Body.setVelocity(this, {
+                  x: this.velocity.x * slow,
+                  y: this.velocity.y * slow
+                });
+              } else {
+                this.force.y += this.mass * 0.00006; //gravity
+              }
 
               if (this.count < 17) {
                 this.count++
@@ -3409,7 +3427,7 @@ const b = {
                 this.radius *= SCALE;
               } else {
                 //shrink
-                const SCALE = 1 - 0.0035 / b.isModBulletsLastLonger
+                const SCALE = 1 - 0.0033 / b.isModBulletsLastLonger
                 Matter.Body.scale(this, SCALE, SCALE);
                 this.radius *= SCALE;
                 if (this.radius < 14) this.endCycle = 0;
@@ -3419,12 +3437,11 @@ const b = {
                 Matter.Body.setPosition(this, this.target.vertices[this.targetVertex])
                 Matter.Body.setVelocity(this.target, Vector.mult(this.target.velocity, 0.9))
                 Matter.Body.setAngularVelocity(this.target, this.target.angularVelocity * 0.9)
-                if (this.target.isShielded) {
-                  this.target.damage(b.dmgScale * 0.001);
+                if (b.isModFoamShieldSKip) {
+                  this.target.damage(b.dmgScale * 0.0025, true); //shield damage bypass
                 } else {
                   this.target.damage(b.dmgScale * 0.005);
                 }
-
               } else if (this.target !== null) { //look for a new target
                 this.target = null
                 this.collisionFilter.category = cat.bullet;
@@ -3434,7 +3451,8 @@ const b = {
           }
         });
         World.add(engine.world, bullet[me]); //add bullet to world
-        const SPEED = mech.crouch ? 22 : 12 - RADIUS * 0.25;
+        if (b.isModFoamShieldSKip) bullet[me].collisionFilter.mask = cat.mob // | cat.mobShield
+        const SPEED = (mech.crouch ? 17 : 12) - RADIUS * 0.25;
         Matter.Body.setVelocity(bullet[me], {
           x: SPEED * Math.cos(dir),
           y: SPEED * Math.sin(dir)
diff --git a/js/engine.js b/js/engine.js
index cb46a7f..84517ac 100644
--- a/js/engine.js
+++ b/js/engine.js
@@ -162,7 +162,7 @@ function collisionChecks(event) {
             mob[k].foundPlayer();
             let dmg = Math.min(Math.max(0.025 * Math.sqrt(mob[k].mass), 0.05), 0.3) * game.dmgScale; //player damage is capped at 0.3*dmgScale of 1.0
             if (b.isModPiezo) {
-              mech.energy = mech.fieldEnergyMax;
+              mech.energy = mech.maxEnergy;
               dmg *= 0.85
             }
             mech.damage(dmg);
diff --git a/js/game.js b/js/game.js
index f4be07d..77d5ea9 100644
--- a/js/game.js
+++ b/js/game.js
@@ -358,7 +358,7 @@ const game = {
         b.giveGuns("all", 1000)
       } else if (keys[72]) { // heal with H
         mech.addHealth(Infinity)
-        mech.energy = mech.fieldEnergyMax;
+        mech.energy = mech.maxEnergy;
       } else if (keys[89]) { //add mods with y
         b.giveMod()
       } else if (keys[82]) { // teleport to mouse with R
@@ -471,7 +471,7 @@ const game = {
     b.setupAllMods(); //sets mods to default values
     game.updateModHUD();
     mech.maxHealth = 1
-    mech.fieldEnergyMax = 1
+    mech.maxEnergy = 1
     game.paused = false;
     engine.timing.timeScale = 1;
     game.fpsCap = game.fpsCapDefault;
@@ -724,8 +724,8 @@ const game = {
 
       if (mech.lastKillCycle + 300 > mech.cycle) { //effects active for 5 seconds after killing a mob
         if (b.isModEnergyRecovery) {
-          mech.energy += mech.fieldEnergyMax * 0.07
-          if (mech.energy > mech.fieldEnergyMax) mech.energy = mech.fieldEnergyMax;
+          mech.energy += mech.maxEnergy * 0.07
+          if (mech.energy > mech.maxEnergy) mech.energy = mech.maxEnergy;
         }
         if (b.isModHealthRecovery) mech.addHealth(0.01)
       }
diff --git a/js/level.js b/js/level.js
index 5a24b26..2038cbe 100644
--- a/js/level.js
+++ b/js/level.js
@@ -15,10 +15,10 @@ const level = {
     if (build.isURLBuild && level.levelsCleared === 0) build.onLoadPowerUps();
     if (level.levelsCleared === 0) { //this code only runs on the first level
       // level.difficultyIncrease(9)
-      // b.giveGuns("missiles")
+      b.giveGuns("foam")
       // mech.setField("time dilation field")
       // b.giveMod("renormalization");
-      // b.giveMod("pocket universe");
+      // b.giveMod("quantum tunneling");
       // b.giveGuns("grenades")
       // b.giveMod("rocket-propelled grenade");
       // mech.setField("pilot wave")
@@ -100,7 +100,7 @@ const level = {
   //******************************************************************************************************************
 
   testing() {
-    level.difficultyIncrease(9);
+    level.difficultyIncrease(19);
     spawn.setSpawnList();
     spawn.setSpawnList();
     level.defaultZoom = 1500
@@ -153,12 +153,16 @@ const level = {
     spawn.mapRect(level.exit.x, level.exit.y + 20, 100, 100); //exit bump
 
     // spawn.bomberBoss(2900, -500)
-    spawn.stabber(1200, -500)
-    // spawn.chaser(1200, -500)
+    spawn.suckerBoss(1200, -500)
+    // spawn.hopper(1200, -500)
+    // spawn.shield(mob[mob.length - 1], 1200, -500, 1);
+
     // spawn.nodeBoss(1200, -500, "spiker")
     // spawn.hopper(1200, -500)
     // spawn.timeSkipBoss(2900, -500)
     // spawn.randomMob(1600, -500)
+    spawn.boost()
+    spawn.boost(1500, 0, 1400);
 
   },
   bosses() {
@@ -254,28 +258,35 @@ const level = {
     level.addZone(level.exit.x, level.exit.y, 100, 30, "nextLevel");
     spawn.mapRect(level.exit.x, level.exit.y + 25, 100, 100); //exit bump
 
-    document.body.style.backgroundColor = "#eee";
+    document.body.style.backgroundColor = "#ddd";
     // game.draw.mapFill = "#444"
     // game.draw.bodyFill = "rgba(140,140,140,0.85)"
     // game.draw.bodyStroke = "#222"
 
+    level.fill.push({
+      x: 2600,
+      y: -600,
+      width: 400,
+      height: 500,
+      color: "rgba(0,255,255,0.05)"
+    });
     level.fillBG.push({
       x: 2600,
       y: -600,
       width: 400,
       height: 500,
-      color: "#dee"
+      color: "#fff"
     });
 
-    level.fill.push({
-      x: -150,
-      y: -1000,
-      width: 2750,
-      height: 1000,
-      color: "rgba(0,10,30,0.04)"
-    });
+    // level.fill.push({
+    //   x: -150,
+    //   y: -1000,
+    //   width: 2750,
+    //   height: 1000,
+    //   color: "rgba(0,10,30,0.04)"
+    // });
 
-    const lineColor = "#ddd"
+    const lineColor = "#ccc"
     level.fillBG.push({
       x: 1600,
       y: -500,
@@ -428,8 +439,7 @@ const level = {
     spawn.bodyRect(2000, 50, 60, 60);
     // spawn.bodyRect(1650, 50, 300, 200);
     spawn.bodyRect(3175, -155, 325, 325);
-    spawn.mapRect(1800, 175, 800, 100); //stops above body from moving to right
-
+    spawn.mapRect(1800, Math.floor(Math.random() * 200), 850, 300); //stops above body from moving to right
     //exit building
     // spawn.mapRect(-100, -410, 100, 30);
     spawn.mapRect(-300, -800, 500, 50);
@@ -509,7 +519,7 @@ const level = {
     });
 
     //far right structure
-    spawn.mapRect(5200, -775, 100, 920);
+    spawn.mapRect(5200, -725, 100, 870);
     spawn.mapRect(5300, -1075, 350, 1220);
     spawn.boost(5825, 235, 1400);
     level.fill.push({
@@ -528,8 +538,8 @@ const level = {
       height: 1500,
       color: "rgba(0,20,40,0.13)"
     });
-    spawn.mapRect(4000, -400, 325, 50);
-    spawn.mapRect(4725, -400, 325, 50);
+    spawn.mapRect(3950, -350, 375, 50);
+    spawn.mapRect(4725, -350, 375, 50);
     spawn.mapRect(4000, -1300, 1050, 100);
 
     //steep stairs
diff --git a/js/mobs.js b/js/mobs.js
index ae98f40..034820e 100644
--- a/js/mobs.js
+++ b/js/mobs.js
@@ -953,8 +953,14 @@ const mobs = {
           if (b.isModFarAwayDmg) dmg *= 1 + Math.sqrt(Math.max(500, Math.min(3000, this.distanceToPlayer())) - 500) * 0.0067 //up to 50% dmg at max range of 3500
 
           //energy and heal drain should be calculated after damage boosts
-          if (b.modEnergySiphon && dmg !== Infinity) mech.energy += Math.min(this.health, dmg) * b.modEnergySiphon
-          if (b.modHealthDrain && dmg !== Infinity) mech.addHealth(Math.min(this.health, dmg) * b.modHealthDrain)
+          if (b.modEnergySiphon && dmg !== Infinity) {
+            mech.energy += Math.min(this.health, dmg) * b.modEnergySiphon
+            if (mech.energy > mech.maxEnergy) mech.energy = mech.maxEnergy
+          }
+          if (b.modHealthDrain && dmg !== Infinity) {
+            mech.addHealth(Math.min(this.health, dmg) * b.modHealthDrain)
+            if (mech.health > mech.maxHealth) mech.health = mech.maxHealth
+          }
           this.health -= dmg
           //this.fill = this.color + this.health + ')';
           this.onDamage(dmg); //custom damage effects
diff --git a/js/player.js b/js/player.js
index 10fba08..ee95473 100644
--- a/js/player.js
+++ b/js/player.js
@@ -759,7 +759,7 @@ const mech = {
   fireCDcycle: 0,
   fieldCDcycle: 0,
   fieldMode: 0, //basic field mode before upgrades
-  fieldEnergyMax: 1, //can be increased by a mod
+  maxEnergy: 1, //can be increased by a mod
   holdingTarget: null,
   fieldShieldingScale: 1,
   timeSkipLastCycle: 0,
@@ -777,7 +777,7 @@ const mech = {
     mech.fieldThreshold = Math.cos(mech.fieldArc * Math.PI)
   },
   setHoldDefaults() {
-    if (mech.energy < mech.fieldEnergyMax) mech.energy = mech.fieldEnergyMax;
+    if (mech.energy < mech.maxEnergy) mech.energy = mech.maxEnergy;
     mech.fieldRegen = b.modEnergyRegen; //0.001
     mech.fieldMeterColor = "#0cf"
     mech.fieldShieldingScale = 1;
@@ -796,17 +796,18 @@ const mech = {
   },
   fieldMeterColor: "#0cf",
   drawFieldMeter(bgColor = "rgba(0, 0, 0, 0.4)", range = 60) {
-    if (mech.energy < mech.fieldEnergyMax) {
+    if (mech.energy < mech.maxEnergy) {
       mech.energy += mech.fieldRegen;
       ctx.fillStyle = bgColor;
-      const xOff = mech.pos.x - mech.radius * mech.fieldEnergyMax
+      const xOff = mech.pos.x - mech.radius * mech.maxEnergy
       const yOff = mech.pos.y - 50
-      ctx.fillRect(xOff, yOff, range * mech.fieldEnergyMax, 10);
+      ctx.fillRect(xOff, yOff, range * mech.maxEnergy, 10);
       ctx.fillStyle = mech.fieldMeterColor;
       ctx.fillRect(xOff, yOff, range * mech.energy, 10);
     }
+    if (mech.energy < 0) mech.energy = 0
     // else {
-    //   mech.energy = mech.fieldEnergyMax
+    //   mech.energy = mech.maxEnergy
     // }
   },
   lookingAt(who) {
@@ -1019,7 +1020,7 @@ const mech = {
           y: powerUp[i].velocity.y * 0.11
         });
         if (dist2 < 5000 && !game.isChoosing) { //use power up if it is close enough
-          if (b.isModMassEnergy) mech.energy = mech.fieldEnergyMax * 2;
+          if (b.isModMassEnergy) mech.energy = mech.maxEnergy * 2;
           Matter.Body.setVelocity(player, { //player knock back, after grabbing power up
             x: player.velocity.x + ((powerUp[i].velocity.x * powerUp[i].mass) / player.mass) * 0.3,
             y: player.velocity.y + ((powerUp[i].velocity.y * powerUp[i].mass) / player.mass) * 0.3
@@ -1038,7 +1039,7 @@ const mech = {
     if (mech.energy > fieldBlockCost * 0.2) { //shield needs at least some of the cost to block
       mech.energy -= fieldBlockCost
       if (mech.energy < 0) mech.energy = 0;
-      if (mech.energy > mech.fieldEnergyMax) mech.energy = mech.fieldEnergyMax;
+      if (mech.energy > mech.maxEnergy) mech.energy = mech.maxEnergy;
 
       const unit = Vector.normalise(Vector.sub(player.position, who.position))
       if (b.modBlockDmg) {
@@ -1378,7 +1379,7 @@ const mech = {
       effect: () => {
         // mech.fieldRegen *= 2;
         mech.hold = function () {
-          if (mech.energy > mech.fieldEnergyMax - 0.02 && mech.fieldCDcycle < mech.cycle) {
+          if (mech.energy > mech.maxEnergy - 0.02 && mech.fieldCDcycle < mech.cycle) {
             if (b.isModSporeField) {
               // mech.fieldCDcycle = mech.cycle + 10; // set cool down to prevent +energy from making huge numbers of drones
               const len = Math.floor(6 + 4 * Math.random())
@@ -1926,20 +1927,21 @@ const mech = {
             mech.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 (mech.energy < mech.fieldEnergyMax) {
+          if (mech.energy < mech.maxEnergy) {
             mech.energy += mech.fieldRegen;
-            const xOff = mech.pos.x - mech.radius * mech.fieldEnergyMax
+            const xOff = mech.pos.x - mech.radius * mech.maxEnergy
             const yOff = mech.pos.y - 50
             ctx.fillStyle = "rgba(0, 0, 0, 0.3)";
-            ctx.fillRect(xOff, yOff, 60 * mech.fieldEnergyMax, 10);
+            ctx.fillRect(xOff, yOff, 60 * mech.maxEnergy, 10);
             ctx.fillStyle = mech.fieldMeterColor;
             ctx.fillRect(xOff, yOff, 60 * mech.energy, 10);
             ctx.beginPath()
-            ctx.rect(xOff, yOff, 60 * mech.fieldEnergyMax, 10);
+            ctx.rect(xOff, yOff, 60 * mech.maxEnergy, 10);
             ctx.strokeStyle = "rgb(0, 0, 0)";
             ctx.lineWidth = 1;
             ctx.stroke();
           }
+          if (mech.energy < 0) mech.energy = 0
         }
       }
     },
@@ -2000,6 +2002,7 @@ const mech = {
               }
             }
 
+            //grab power ups into the field
             for (let i = 0, len = powerUp.length; i < len; ++i) {
               const dxP = mech.fieldPosition.x - powerUp[i].position.x;
               const dyP = mech.fieldPosition.y - powerUp[i].position.y;
@@ -2014,11 +2017,11 @@ const mech = {
                   y: powerUp[i].velocity.y * 0.11
                 });
                 if (dist2 < 5000 && !game.isChoosing) { //use power up if it is close enough
-                  if (b.isModMassEnergy) mech.energy = mech.fieldEnergyMax * 2;
+                  if (b.isModMassEnergy) mech.energy = mech.maxEnergy * 2;
                   powerUp[i].effect();
                   Matter.World.remove(engine.world, powerUp[i]);
                   powerUp.splice(i, 1);
-                  mech.fieldRadius += 50
+                  // mech.fieldRadius += 50
                   break; //because the array order is messed up after splice
                 }
               }
diff --git a/js/powerups.js b/js/powerups.js
index 7d83a2f..7b3bddb 100644
--- a/js/powerups.js
+++ b/js/powerups.js
@@ -78,7 +78,7 @@ const powerUps = {
           }
         }
         if (target.ammo === Infinity) {
-          mech.energy = mech.fieldEnergyMax;
+          if (mech.energy < mech.maxEnergy) mech.energy = mech.maxEnergy;
           if (!game.lastLogTime) game.makeTextLog("<span style='font-size:115%;'><span class='color-f'>+energy</span></span>", 300);
         } else {
           let ammo = Math.ceil((target.ammoPack * (1 + 0.1 * Math.random())));
@@ -89,7 +89,7 @@ const powerUps = {
         }
       } else {
         // target = b.guns[Math.floor(Math.random() * b.guns.length)];         //if you don't have any guns just add ammo to a random gun you don't have yet
-        mech.energy = mech.fieldEnergyMax;
+        if (mech.energy < mech.maxEnergy) mech.energy = mech.maxEnergy;
         if (!game.lastLogTime) game.makeTextLog("<span style='font-size:115%;'><span class='color-f'>+energy</span></span>", 300);
       }
     }
@@ -110,17 +110,18 @@ const powerUps = {
       }
 
       let choice1 = pick(mech.fieldUpgrades)
-      let choice2 = pick(mech.fieldUpgrades, choice1)
+      let choice2 = -1
       let choice3 = -1
       if (choice1 > -1) {
         let text = `<div class='cancel' onclick='powerUps.cancel("field")'>✕</div><h3 style = 'color:#fff; text-align:left; margin: 0px;'>choose a field</h3>`
         text += `<div class="choose-grid-module" onclick="powerUps.choose('field',${choice1})"><div class="grid-title"><div class="circle-grid field"></div> &nbsp; ${mech.fieldUpgrades[choice1].name}</div> ${mech.fieldUpgrades[choice1].description}</div>`
-        if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('field',${choice2})"><div class="grid-title"><div class="circle-grid field"></div> &nbsp; ${mech.fieldUpgrades[choice2].name}</div> ${mech.fieldUpgrades[choice2].description}</div>`
         if (!b.isModBayesian) {
+          choice2 = pick(mech.fieldUpgrades, choice1)
+          if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('field',${choice2})"><div class="grid-title"><div class="circle-grid field"></div> &nbsp; ${mech.fieldUpgrades[choice2].name}</div> ${mech.fieldUpgrades[choice2].description}</div>`
           choice3 = pick(mech.fieldUpgrades, choice1, choice2)
           if (choice3 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('field',${choice3})"><div class="grid-title"><div class="circle-grid field"></div> &nbsp; ${mech.fieldUpgrades[choice3].name}</div> ${mech.fieldUpgrades[choice3].description}</div>`
         }
-        if (b.isModFourOptions) {
+        if (b.isModExtraChoice) {
           let choice4 = pick(mech.fieldUpgrades, choice1, choice2, choice3)
           if (choice4 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('field',${choice4})"><div class="grid-title"><div class="circle-grid field"></div> &nbsp; ${mech.fieldUpgrades[choice4].name}</div> ${mech.fieldUpgrades[choice4].description}</div>`
         }
@@ -154,17 +155,18 @@ const powerUps = {
       }
 
       let choice1 = pick()
-      let choice2 = pick(choice1)
+      let choice2 = -1
       let choice3 = -1
       if (choice1 > -1) {
         let text = `<div class='cancel' onclick='powerUps.cancel("mod")'>✕</div><h3 style = 'color:#fff; text-align:left; margin: 0px;'>choose a mod</h3>`
         text += `<div class="choose-grid-module" onclick="powerUps.choose('mod',${choice1})"><div class="grid-title"><div class="circle-grid mod"></div> &nbsp; ${b.mods[choice1].name}</div> ${b.mods[choice1].description}</div>`
-        if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('mod',${choice2})"><div class="grid-title"><div class="circle-grid mod"></div> &nbsp; ${b.mods[choice2].name}</div> ${b.mods[choice2].description}</div>`
         if (!b.isModBayesian) {
+          choice2 = pick(choice1)
+          if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('mod',${choice2})"><div class="grid-title"><div class="circle-grid mod"></div> &nbsp; ${b.mods[choice2].name}</div> ${b.mods[choice2].description}</div>`
           choice3 = pick(choice1, choice2)
           if (choice3 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('mod',${choice3})"><div class="grid-title"><div class="circle-grid mod"></div> &nbsp; ${b.mods[choice3].name}</div> ${b.mods[choice3].description}</div>`
         }
-        if (b.isModFourOptions) {
+        if (b.isModExtraChoice) {
           let choice4 = pick(choice1, choice2, choice3)
           if (choice4 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('mod',${choice4})"><div class="grid-title"><div class="circle-grid mod"></div> &nbsp; ${b.mods[choice4].name}</div> ${b.mods[choice4].description}</div>`
         }
@@ -191,17 +193,18 @@ const powerUps = {
       }
 
       let choice1 = pick(b.guns)
-      let choice2 = pick(b.guns, choice1)
+      let choice2 = -1
       let choice3 = -1
       if (choice1 > -1) {
         let text = `<div class='cancel' onclick='powerUps.cancel("gun")'>✕</div><h3 style = 'color:#fff; text-align:left; margin: 0px;'>choose a gun</h3>`
         text += `<div class="choose-grid-module" onclick="powerUps.choose('gun',${choice1})"><div class="grid-title"><div class="circle-grid gun"></div> &nbsp; ${b.guns[choice1].name}</div> ${b.guns[choice1].description}</div>`
-        if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('gun',${choice2})"><div class="grid-title"><div class="circle-grid gun"></div> &nbsp; ${b.guns[choice2].name}</div> ${b.guns[choice2].description}</div>`
         if (!b.isModBayesian) {
+          choice2 = pick(b.guns, choice1)
+          if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('gun',${choice2})"><div class="grid-title"><div class="circle-grid gun"></div> &nbsp; ${b.guns[choice2].name}</div> ${b.guns[choice2].description}</div>`
           choice3 = pick(b.guns, choice1, choice2)
           if (choice3 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('gun',${choice3})"><div class="grid-title"><div class="circle-grid gun"></div> &nbsp; ${b.guns[choice3].name}</div> ${b.guns[choice3].description}</div>`
         }
-        if (b.isModFourOptions) {
+        if (b.isModExtraChoice) {
           let choice4 = pick(b.guns, choice1, choice2, choice3)
           if (choice4 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('gun',${choice4})"><div class="grid-title"><div class="circle-grid gun"></div> &nbsp; ${b.guns[choice4].name}</div> ${b.guns[choice4].description}</div>`
         }
diff --git a/js/spawn.js b/js/spawn.js
index 184c02c..6a3d972 100644
--- a/js/spawn.js
+++ b/js/spawn.js
@@ -517,10 +517,9 @@ const spawn = {
 
         //when player is inside event horizon
         if (Vector.magnitude(Vector.sub(this.position, player.position)) < eventHorizon) {
-          if (mech.energy > 0.1) {
-            mech.energy -= 0.005
-          } else {
-            mech.damage(0.0002 * game.dmgScale);
+          mech.energy -= 0.004
+          if (mech.energy < 0.1) {
+            mech.damage(0.00015 * game.dmgScale);
           }
           const angle = Math.atan2(player.position.y - this.position.y, player.position.x - this.position.x);
           player.force.x -= 0.00125 * player.mass * Math.cos(angle) * (mech.onGround ? 1.8 : 1);
@@ -616,10 +615,9 @@ const spawn = {
         ctx.fill();
         //when player is inside event horizon
         if (Vector.magnitude(Vector.sub(this.position, player.position)) < eventHorizon) {
-          if (mech.energy > 0.1) {
-            mech.energy -= 0.0075
-          } else {
-            mech.damage(0.0003 * game.dmgScale);
+          mech.energy -= 0.006
+          if (mech.energy < 0.1) {
+            mech.damage(0.0002 * game.dmgScale);
           }
           const angle = Math.atan2(player.position.y - this.position.y, player.position.x - this.position.x);
           player.force.x -= 0.0013 * Math.cos(angle) * player.mass * (mech.onGround ? 1.7 : 1);
@@ -936,7 +934,8 @@ const spawn = {
       ctx.lineTo(best.x, best.y);
     }
   },
-  stabber(x, y, radius = 25 + Math.ceil(Math.random() * 15)) {
+  stabber(x, y, radius = 25 + Math.ceil(Math.random() * 12)) {
+    if (radius > 80) radius = 65;
     mobs.spawn(x, y, 6, radius, "rgb(220,50,205)"); //can't have sides above 6 or collision events don't work (probably because of a convex problem)
     let me = mob[mob.length - 1];
     me.accelMag = 0.0006 * game.accelScale;
diff --git a/style.css b/style.css
index 2c03f31..b878e1a 100644
--- a/style.css
+++ b/style.css
@@ -268,6 +268,7 @@ summary {
   width: 100%;
   height: 100%;
   display: none;
+  /* background-color also set in mass-energy mod */
   background-color: #f67;
   opacity: 0;
   transition: opacity 1s;
diff --git a/todo.txt b/todo.txt
index ce9d391..d7e15dc 100644
--- a/todo.txt
+++ b/todo.txt
@@ -2,6 +2,12 @@
 
 
 ************** TODO - n-gon **************
+
+mod - annihilation might be unbalanced?
+
+boss mob - let it die multiple times and come back to life
+  on death event spawns a new version of self, but with a decrementing counter
+
 foam - check for touching map / blocks and slow foam down rather then bounce off walls
 quantum foam should just skip the shield