diff --git a/index.html b/index.html
index b42ad24..068378d 100644
--- a/index.html
+++ b/index.html
@@ -40,6 +40,7 @@
 	<div id="health"></div>
 	<div id="dmg"></div>
 	<div id="choose-background"></div>
+	<div id='construct' contenteditable="true"></div>
 
 	<!-- guns -->
 	<!-- <audio id="snare2" src="sounds\guns\snare2.ogg" preload="auto"></audio>
diff --git a/js/bullets.js b/js/bullets.js
index 026b530..1530335 100644
--- a/js/bullets.js
+++ b/js/bullets.js
@@ -24,7 +24,7 @@ const b = {
   modRecursiveHealing: null,
   modSquirrelFx: null,
   isModCrit: null,
-  isModBayesian: null,
+  modBayesian: null,
   isModLowHealthDmg: null,
   isModFarAwayDmg: null,
   isModEntanglement: null,
@@ -42,7 +42,6 @@ const b = {
   modLaserReflections: null,
   modLaserDamage: null,
   modLaserFieldDrain: null,
-  isModNoAmmo: null,
   isModAmmoFromHealth: null,
   modMobDieAtHealth: null,
   isModEnergyRecovery: null,
@@ -83,6 +82,7 @@ const b = {
   isModRest: null,
   isModRPG: null,
   isMod3Missiles: null,
+  isModDeterminism: null,
   modOnHealthChange() { //used with acid mod
     if (b.isModAcidDmg && mech.health > 0.8) {
       b.modAcidDmg = 0.5
@@ -116,7 +116,7 @@ const b = {
   mods: [{
       name: "capacitor",
       // nameInfo: "<span id='mod-capacitor'></span>",
-      description: "increase <strong class='color-d'>damage</strong> based on stored <strong class='color-f'>energy</strong><br><strong>+1%</strong> <strong class='color-d'>damage</strong> for every <strong>5%</strong> <strong class='color-f'>energy</strong>",
+      description: "increase <strong class='color-d'>damage</strong> based on stored <strong class='color-f'>energy</strong><br><strong>+1%</strong> <strong class='color-d'>damage</strong> for every <strong>5.5%</strong> <strong class='color-f'>energy</strong>",
       maxCount: 1,
       count: 0,
       allowed() {
@@ -316,7 +316,7 @@ const b = {
     },
     {
       name: "scrap bots",
-      description: "<strong>+13%</strong> chance to build a <strong>bot</strong> after killing a mob<br>the bot will follow you until you <strong>exit</strong> the map",
+      description: "<strong>+12%</strong> chance to build a <strong>bot</strong> after killing a mob<br>the bot will follow you until you <strong>exit</strong> the map",
       maxCount: 6,
       count: 0,
       allowed() {
@@ -324,7 +324,7 @@ const b = {
       },
       requires: "",
       effect() {
-        b.isModBotSpawner += 0.13;
+        b.isModBotSpawner += 0.12;
       },
       remove() {
         b.isModBotSpawner = 0;
@@ -726,7 +726,7 @@ const b = {
     },
     {
       name: "Bayesian inference",
-      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>",
+      description: "<strong>33%</strong> chance for double <strong>power ups</strong> to drop<br><strong>remove</strong> all future <strong>ammo</strong> power ups",
       maxCount: 1,
       count: 0,
       allowed() {
@@ -734,10 +734,10 @@ const b = {
       },
       requires: "",
       effect: () => {
-        b.isModBayesian = 0.33;
+        b.modBayesian = 0.33;
       },
       remove() {
-        b.isModBayesian = 0;
+        b.modBayesian = 0;
       }
     },
     {
@@ -773,8 +773,8 @@ const b = {
       }
     },
     {
-      name: "leveraged investment",
-      description: "<strong>remove</strong> all future <strong>ammo</strong> power ups<br>spawn <strong>5</strong> <strong class='color-m'>mods</strong> and <strong>3</strong> <strong class='color-h'>healing</strong> power ups",
+      name: "determinism",
+      description: "spawn <strong>4</strong> <strong class='color-m'>mods</strong> and 2 <strong class='color-h'>heal</strong> power ups<br>future <strong>power ups</strong> are limited to <strong>one choice</strong>",
       maxCount: 1,
       count: 0,
       allowed() {
@@ -782,23 +782,23 @@ const b = {
       },
       requires: "",
       effect: () => {
-        b.isModNoAmmo = true;
-        for (let i = 0; i < 5; i++) { //if you change the six also change it in Born rule
+        b.isModDeterminism = true;
+        for (let i = 0; i < 4; i++) { //if you change the six also change it in Born rule
           powerUps.spawn(mech.pos.x, mech.pos.y, "mod");
-          if (Math.random() < b.isModBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "mod");
+          if (Math.random() < b.modBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "mod");
         }
-        for (let i = 0; i < 3; i++) { // spawn new mods
+        for (let i = 0; i < 2; i++) { // spawn new mods
           powerUps.spawn(mech.pos.x, mech.pos.y, "heal");
-          if (Math.random() < b.isModBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "heal");
+          if (Math.random() < b.modBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "heal");
         }
       },
       remove() {
-        b.isModNoAmmo = false;
+        b.isModDeterminism = false;
       }
     },
     {
       name: "reallocation",
-      description: "convert <strong>1</strong> random <strong class='color-m'>mod</strong> into <strong>2</strong> new <strong>guns</strong><br><em>recursive mods can lose all stacks</em>",
+      description: "convert <strong>1</strong> random <strong class='color-m'>mod</strong> into <strong>2</strong> new <strong>guns</strong><br><em>recursive mods lose all stacks</em>",
       maxCount: 1,
       count: 0,
       allowed() {
@@ -817,7 +817,7 @@ const b = {
 
         for (let i = 0; i < 2; i++) {
           powerUps.spawn(mech.pos.x, mech.pos.y, "gun");
-          if (Math.random() < b.isModBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "gun");
+          if (Math.random() < b.modBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "gun");
         }
       },
       remove() {
@@ -839,7 +839,7 @@ const b = {
         bullet = [];
 
         let count = b.modCount
-        if (b.isModNoAmmo) count -= 5 //remove the 5 bonus mods when getting rid of leveraged investment
+        if (b.isModDeterminism) count -= 4 //remove the 5 bonus mods when getting rid of determinism
         for (let i = 0; i < count; i++) { // spawn new mods
           powerUps.spawn(mech.pos.x, mech.pos.y, "mod");
         }
@@ -1291,7 +1291,7 @@ const b = {
     },
     {
       name: "quantum tunneling",
-      description: "<strong>foam</strong> bypasses <strong>shields</strong> to stick to mobs",
+      description: "<strong>foam</strong> bypasses <strong>shields</strong> and sticks to mobs",
       maxCount: 1,
       count: 0,
       allowed() {
@@ -1650,7 +1650,7 @@ const b = {
           if (mech.health > 0.05) {
             mech.damage(Math.max(0.01, b.isModAmmoFromHealth * mech.health));
             powerUps.spawn(mech.pos.x, mech.pos.y, "ammo");
-            if (Math.random() < b.isModBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "ammo");
+            if (Math.random() < b.modBayesian) powerUps.spawn(mech.pos.x, mech.pos.y, "ammo");
           } else {
             game.replaceTextLog = true;
             game.makeTextLog("not enough health for catabolism to produce ammo", 120);
@@ -1673,7 +1673,7 @@ const b = {
     if (b.isModHarmDamage && mech.lastHarmCycle + 300 > mech.cycle) dmg *= 2;
     if (b.isModEnergyLoss) dmg *= 1.33;
     if (b.isModRest && player.speed < 1) dmg *= 1.20;
-    if (b.isModEnergyDamage) dmg *= 1 + mech.energy / 5;
+    if (b.isModEnergyDamage) dmg *= 1 + mech.energy / 5.5;
     return dmg
   },
   bulletRemove() { //run in main loop
@@ -2385,11 +2385,11 @@ const b = {
     };
     bullet[me].do = function () {};
   },
-  nailBot(speed = 1) {
+  nailBot(position = mech.pos) {
     const me = bullet.length;
     const dir = mech.angle;
     const RADIUS = (10 + 5 * Math.random())
-    bullet[me] = Bodies.polygon(mech.pos.x + 30 * Math.cos(mech.angle), mech.pos.y + 30 * Math.sin(mech.angle), 4, RADIUS, {
+    bullet[me] = Bodies.polygon(position.x, position.y, 4, RADIUS, {
       angle: dir,
       friction: 0,
       frictionStatic: 0,
@@ -2439,16 +2439,12 @@ const b = {
       }
     })
     World.add(engine.world, bullet[me]); //add bullet to world
-    Matter.Body.setVelocity(bullet[me], {
-      x: speed * Math.cos(dir),
-      y: speed * Math.sin(dir)
-    });
   },
-  laserBot(speed = 1) {
+  laserBot(position = mech.pos) {
     const me = bullet.length;
     const dir = mech.angle;
     const RADIUS = (14 + 6 * Math.random())
-    bullet[me] = Bodies.polygon(mech.pos.x + 30 * Math.cos(mech.angle), mech.pos.y + 30 * Math.sin(mech.angle), 3, RADIUS, {
+    bullet[me] = Bodies.polygon(position.x, position.y, 3, RADIUS, {
       angle: dir,
       friction: 0,
       frictionStatic: 0,
@@ -2558,10 +2554,6 @@ const b = {
       }
     })
     World.add(engine.world, bullet[me]); //add bullet to world
-    Matter.Body.setVelocity(bullet[me], {
-      x: speed * Math.cos(dir),
-      y: speed * Math.sin(dir)
-    });
   },
   giveGuns(gun = "random", ammoPacks = 6) {
     if (gun === "random") {
@@ -3435,7 +3427,7 @@ 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 (b.isModFoamShieldSKip) {
+                if (b.isModFoamShieldSKip && this.target.isShielded) {
                   this.target.damage(b.dmgScale * 0.0025, true); //shield damage bypass
                 } else {
                   this.target.damage(b.dmgScale * 0.005);
diff --git a/js/game.js b/js/game.js
index 77d5ea9..0b0a515 100644
--- a/js/game.js
+++ b/js/game.js
@@ -20,6 +20,7 @@ const game = {
     game.draw.cons();
     game.draw.testing();
     game.drawCircle();
+    game.constructCycle()
     ctx.restore();
     game.testingOutput();
     game.drawCursor();
@@ -322,8 +323,14 @@ const game = {
       if (game.testing) {
         game.testing = false;
         game.loop = game.normalLoop
+        if (game.isConstructionMode) {
+          document.getElementById("construct").style.display = 'none'
+        }
       } else {
         game.testing = true;
+        if (game.isConstructionMode) {
+          document.getElementById("construct").style.display = 'inline'
+        }
         game.loop = game.testingLoop
       }
     }
@@ -758,78 +765,32 @@ const game = {
     }
   },
   testingOutput() {
-    ctx.textAlign = "right";
-    ctx.fillStyle = "#000";
-    let line = 500;
-    const x = canvas.width - 5;
-    ctx.fillText("T: exit testing mode", x, line);
-    line += 20;
-    ctx.fillText("Y: give all mods", x, line);
-    line += 20;
-    ctx.fillText("R: teleport to mouse", x, line);
-    line += 20;
-    ctx.fillText("F: cycle field", x, line);
-    line += 20;
-    ctx.fillText("G: give all guns", x, line);
-    line += 20;
-    ctx.fillText("H: heal", x, line);
-    line += 20;
-    ctx.fillText("U: next level", x, line);
-    line += 20;
-    ctx.fillText("1-7: spawn things", x, line);
-    line += 30;
-
-    // ctx.fillText("cycle: " + game.cycle, x, line);
-    // line += 20;
-    // ctx.fillText("player cycle: " + mech.cycle, x, line);
-    // line += 20;
-    // ctx.fillText("x: " + player.position.x.toFixed(0), x, line);
-    // line += 20;
-    // ctx.fillText("y: " + player.position.y.toFixed(0), x, line);
-    // line += 20;
-    // ctx.fillText("Vx: " + mech.Vx.toFixed(2), x, line);
-    // line += 20;
-    // ctx.fillText("Vy: " + mech.Vy.toFixed(2), x, line);
-    // line += 20;
-    // ctx.fillText("Fx: " + player.force.x.toFixed(3), x, line);
-    // line += 20;
-    // ctx.fillText("Fy: " + player.force.y.toFixed(3), x, line);
-    // line += 20;
-    // ctx.fillText("yOff: " + mech.yOff.toFixed(1), x, line);
-    // line += 20;
-    // ctx.fillText("mass: " + player.mass.toFixed(1), x, line);
-    // line += 20;
-    // ctx.fillText("onGround: " + mech.onGround, x, line);
-    // line += 20;
-    // ctx.fillText("crouch: " + mech.crouch, x, line);
-    // line += 20;
-    // ctx.fillText("isHeadClear: " + mech.isHeadClear, x, line);
-    // line += 20;
-    // ctx.fillText("frictionAir: " + player.frictionAir.toFixed(3), x, line);
-    // line += 20;
-    // ctx.fillText("stepSize: " + mech.stepSize.toFixed(2), x, line);
-    // line += 20;
-    // ctx.fillText("zoom: " + game.zoom.toFixed(4), x, line);
-    // line += 20;
+    if (!game.isConstructionMode) {
+      ctx.textAlign = "right";
+      ctx.fillStyle = "#000";
+      let line = 500;
+      const x = canvas.width - 5;
+      ctx.fillText("T: exit testing mode", x, line);
+      line += 20;
+      ctx.fillText("Y: give all mods", x, line);
+      line += 20;
+      ctx.fillText("R: teleport to mouse", x, line);
+      line += 20;
+      ctx.fillText("F: cycle field", x, line);
+      line += 20;
+      ctx.fillText("G: give all guns", x, line);
+      line += 20;
+      ctx.fillText("H: heal", x, line);
+      line += 20;
+      ctx.fillText("U: next level", x, line);
+      line += 20;
+      ctx.fillText("1-7: spawn things", x, line);
+    }
     ctx.textAlign = "center";
     ctx.fillText(`(${game.mouseInGame.x.toFixed(1)}, ${game.mouseInGame.y.toFixed(1)})`, game.mouse.x, game.mouse.y - 20);
   },
   draw: {
     powerUp() {
-      // draw power up
-      // ctx.globalAlpha = 0.4 * Math.sin(mech.cycle * 0.15) + 0.6;
-      // for (let i = 0, len = powerUp.length; i < len; ++i) {
-      //   let vertices = powerUp[i].vertices;
-      //   ctx.beginPath();
-      //   ctx.moveTo(vertices[0].x, vertices[0].y);
-      //   for (let j = 1; j < vertices.length; j += 1) {
-      //     ctx.lineTo(vertices[j].x, vertices[j].y);
-      //   }
-      //   ctx.lineTo(vertices[0].x, vertices[0].y);
-      //   ctx.fillStyle = powerUp[i].color;
-      //   ctx.fill();
-      // }
-      // ctx.globalAlpha = 1;
       ctx.globalAlpha = 0.4 * Math.sin(mech.cycle * 0.15) + 0.6;
       for (let i = 0, len = powerUp.length; i < len; ++i) {
         ctx.beginPath();
@@ -872,133 +833,6 @@ const game = {
       ctx.fillStyle = game.draw.mapFill;
       ctx.fill(game.draw.mapPath);
     },
-    // seeEdges() {
-    //   const eye = {
-    //     x: mech.pos.x + 20 * Math.cos(mech.angle),
-    //     y: mech.pos.y + 20 * Math.sin(mech.angle)
-    //   };
-    //   //find all vertex nodes in range and in LOS
-    //   findNodes = function (domain, center) {
-    //     let nodes = [];
-    //     for (let i = 0; i < domain.length; ++i) {
-    //       let vertices = domain[i].vertices;
-
-    //       for (let j = 0, len = vertices.length; j < len; j++) {
-    //         //calculate distance to player
-    //         const dx = vertices[j].x - center.x;
-    //         const dy = vertices[j].y - center.y;
-    //         if (dx * dx + dy * dy < 800 * 800 && Matter.Query.ray(domain, center, vertices[j]).length === 0) {
-    //           nodes.push(vertices[j]);
-    //         }
-    //       }
-    //     }
-    //     return nodes;
-    //   };
-    //   let nodes = findNodes(map, eye);
-    //   //sort node list by angle to player
-    //   nodes.sort(function (a, b) {
-    //     //sub artan2 from player loc
-    //     const dx = a.x - eye.x;
-    //     const dy = a.y - eye.y;
-    //     return Math.atan2(dy, dx) - Math.atan2(dy, dx);
-    //   });
-    //   //draw nodes
-    //   ctx.lineWidth = 2;
-    //   ctx.strokeStyle = "#000";
-    //   ctx.beginPath();
-    //   for (let i = 0; i < nodes.length; ++i) {
-    //     ctx.lineTo(nodes[i].x, nodes[i].y);
-    //   }
-    //   ctx.stroke();
-    // },
-    // see() {
-    //   const vertexCollision = function (
-    //     v1,
-    //     v1End,
-    //     domain,
-    //     best = {
-    //       x: null,
-    //       y: null,
-    //       dist2: Infinity,
-    //       who: null,
-    //       v1: null,
-    //       v2: null
-    //     }
-    //   ) {
-    //     for (let i = 0; i < domain.length; ++i) {
-    //       let vertices = domain[i].vertices;
-    //       const len = vertices.length - 1;
-    //       for (let j = 0; j < len; j++) {
-    //         results = game.checkLineIntersection(v1, v1End, vertices[j], vertices[j + 1]);
-    //         if (results.onLine1 && results.onLine2) {
-    //           const dx = v1.x - results.x;
-    //           const dy = v1.y - results.y;
-    //           const dist2 = dx * dx + dy * dy;
-    //           if (dist2 < best.dist2 && (!domain[i].mob || domain[i].alive)) {
-    //             best = {
-    //               x: results.x,
-    //               y: results.y,
-    //               dist2: dist2,
-    //               who: domain[i],
-    //               v1: vertices[j],
-    //               v2: vertices[j + 1]
-    //             };
-    //           }
-    //         }
-    //       }
-    //       results = game.checkLineIntersection(v1, v1End, vertices[0], vertices[len]);
-    //       if (results.onLine1 && results.onLine2) {
-    //         const dx = v1.x - results.x;
-    //         const dy = v1.y - results.y;
-    //         const dist2 = dx * dx + dy * dy;
-    //         if (dist2 < best.dist2 && (!domain[i].mob || domain[i].alive)) {
-    //           best = {
-    //             x: results.x,
-    //             y: results.y,
-    //             dist2: dist2,
-    //             who: domain[i],
-    //             v1: vertices[0],
-    //             v2: vertices[len]
-    //           };
-    //         }
-    //       }
-    //     }
-    //     return best;
-    //   };
-    //   const range = 3000;
-    //   ctx.beginPath();
-    //   for (let i = 0; i < Math.PI * 2; i += Math.PI / 2 / 100) {
-    //     const cosAngle = Math.cos(mech.angle + i);
-    //     const sinAngle = Math.sin(mech.angle + i);
-
-    //     const start = {
-    //       x: mech.pos.x + 20 * cosAngle,
-    //       y: mech.pos.y + 20 * sinAngle
-    //     };
-    //     const end = {
-    //       x: mech.pos.x + range * cosAngle,
-    //       y: mech.pos.y + range * sinAngle
-    //     };
-    //     let result = vertexCollision(start, end, map);
-    //     result = vertexCollision(start, end, body, result);
-    //     result = vertexCollision(start, end, mob, result);
-
-    //     if (result.dist2 < range * range) {
-    //       // ctx.arc(result.x, result.y, 2, 0, 2 * Math.PI);
-    //       ctx.lineTo(result.x, result.y);
-    //     } else {
-    //       // ctx.arc(end.x, end.y, 2, 0, 2 * Math.PI);
-    //       ctx.lineTo(end.x, end.y);
-    //     }
-    //   }
-    //   // ctx.lineWidth = 1;
-    //   // ctx.strokeStyle = "#000";
-    //   // ctx.stroke();
-    //   ctx.fillStyle = "rgba(0,0,0,0.3)";
-    //   ctx.fillStyle = "#fff";
-    //   ctx.fill();
-    //   ctx.clip();
-    // },
     body() {
       ctx.beginPath();
       for (let i = 0, len = body.length; i < len; ++i) {
@@ -1146,38 +980,144 @@ const game = {
     // if line1 and line2 are segments, they intersect if both of the above are true
     return result;
   },
-  //was used in level design
-  buildingUp(e) {
-    if (game.mouseDown) {
-      game.getCoords.pos2.x = Math.round(game.mouseInGame.x / 25) * 25;
-      game.getCoords.pos2.y = Math.round(game.mouseInGame.y / 25) * 25;
-      let out;
+  copyToClipBoard(value) {
+    // Create a fake textarea
+    const textAreaEle = document.createElement('textarea');
 
-      //body rect mode
-      out = `spawn.mapRect(${game.getCoords.pos1.x}, ${game.getCoords.pos1.y}, ${game.getCoords.pos2.x - game.getCoords.pos1.x}, ${game.getCoords.pos2.y -
-        game.getCoords.pos1.y});`;
+    // Reset styles
+    textAreaEle.style.border = '0';
+    textAreaEle.style.padding = '0';
+    textAreaEle.style.margin = '0';
 
-      //mob spawn
-      //out = `spawn.randomMob(${game.getCoords.pos1.x}, ${game.getCoords.pos1.y}, 0.3);`
+    // Set the absolute position
+    // User won't see the element
+    textAreaEle.style.position = 'absolute';
+    textAreaEle.style.left = '-9999px';
+    textAreaEle.style.top = `0px`;
 
-      //draw foreground
-      //out = `level.fill.push({ x: ${game.getCoords.pos1.x}, y: ${game.getCoords.pos1.y}, width: ${game.getCoords.pos2.x-game.getCoords.pos1.x}, height: ${game.getCoords.pos2.y-game.getCoords.pos1.y}, color: "rgba(0,0,0,0.1)"});`;
+    // Set the value
+    textAreaEle.value = value
 
-      //draw background fill
-      //out = `level.fillBG.push({ x: ${game.getCoords.pos1.x}, y: ${game.getCoords.pos1.y}, width: ${game.getCoords.pos2.x-game.getCoords.pos1.x}, height: ${game.getCoords.pos2.y-game.getCoords.pos1.y}, color: "#ccc"});`;
+    // Append the textarea to body
+    document.body.appendChild(textAreaEle);
 
-      //svg mode
-      //out = 'rect x="'+game.getCoords.pos1.x+'" y="'+ game.getCoords.pos1.y+'" width="'+(game.getCoords.pos2.x-game.getCoords.pos1.x)+'" height="'+(game.getCoords.pos2.y-game.getCoords.pos1.y)+'"';
+    // Focus and select the text
+    textAreaEle.focus();
+    textAreaEle.select();
 
-      console.log(out);
-      // document.getElementById("copy-this").innerHTML = out
-      //
-      // window.getSelection().removeAllRanges();
-      // var range = document.createRange();
-      // range.selectNode(document.getElementById('copy-this'));
-      // window.getSelection().addRange(range);
-      // document.execCommand('copy')
-      // window.getSelection().removeAllRanges();
+    // Execute the "copy" command
+    try {
+      document.execCommand('copy');
+    } catch (err) {
+      // Unable to copy
+    } finally {
+      // Remove the textarea
+      document.body.removeChild(textAreaEle);
     }
+  },
+  constructMouseDownPosition: {
+    x: 0,
+    y: 0
+  },
+  constructMapString: [],
+  constructCycle() {
+    if (game.isConstructionMode && game.constructMouseDownPosition) {
+      function round(num, round = 25) {
+        return Math.ceil(num / round) * round;
+      }
+      const x = round(game.constructMouseDownPosition.x)
+      const y = round(game.constructMouseDownPosition.y)
+      const dx = round(game.mouseInGame.x) - x
+      const dy = round(game.mouseInGame.y) - y
+
+      ctx.strokeStyle = "#000"
+      ctx.lineWidth = 2;
+      ctx.strokeRect(x, y, dx, dy);
+    }
+  },
+  outputMapString() {
+    let out = "" //combine set of map strings to one string
+    let outHTML = ""
+    for (let i = 0, len = game.constructMapString.length; i < len; i++) {
+      out += game.constructMapString[i];
+      outHTML += "<div>" + game.constructMapString[i] + "</div>"
+    }
+    game.copyToClipBoard(out)
+    document.getElementById("construct").innerHTML = outHTML
+  },
+  enableConstructMode() {
+    game.isConstructionMode = true;
+    game.isAutoZoom = false;
+
+    document.body.addEventListener("mouseup", (e) => {
+      if (game.testing && game.constructMouseDownPosition && game.mouseInGame.x > game.constructMouseDownPosition.x && game.mouseInGame.y > game.constructMouseDownPosition.y) { //make sure that the width and height are positive
+        function round(num, round = 25) {
+          return Math.ceil(num / round) * round;
+        }
+        //clean up positions
+        const x = round(game.constructMouseDownPosition.x)
+        const y = round(game.constructMouseDownPosition.y)
+        const dx = round(game.mouseInGame.x) - x
+        const dy = round(game.mouseInGame.y) - y
+
+        console.log(e.which)
+        if (e.which === 1) { //add map
+          game.constructMapString.push(`spawn.mapRect(${x}, ${y}, ${dx}, ${dy});`) //store command as a string in the next element of an array
+          game.outputMapString();
+
+          //see map in world
+          spawn.mapRect(x, y, dx, dy);
+          len = map.length - 1
+          map[len].collisionFilter.category = cat.map;
+          map[len].collisionFilter.mask = cat.player | cat.map | cat.body | cat.bullet | cat.powerUp | cat.mob | cat.mobBullet;
+          Matter.Body.setStatic(map[len], true); //make static
+          World.add(engine.world, map[len]); //add to world
+
+          game.draw.setPaths() //update map graphics
+        } else if (e.which === 3) { //add body
+          game.constructMapString.push(`spawn.bodyRect(${x}, ${y}, ${dx}, ${dy});`) //store command as a string in the next element of an array
+          game.outputMapString();
+
+          //see map in world
+          spawn.bodyRect(x, y, dx, dy);
+          len = body.length - 1
+          body[len].collisionFilter.category = cat.body;
+          body[len].collisionFilter.mask = cat.player | cat.map | cat.body | cat.bullet | cat.mob | cat.mobBullet
+          World.add(engine.world, body[len]); //add to world
+        }
+
+      }
+      game.constructMouseDownPosition.x = undefined
+      game.constructMouseDownPosition.y = undefined
+    });
+    game.constructMouseDownPosition.x = undefined
+    game.constructMouseDownPosition.y = undefined
+    document.body.addEventListener("mousedown", () => {
+      if (game.testing) {
+        game.constructMouseDownPosition.x = game.mouseInGame.x
+        game.constructMouseDownPosition.y = game.mouseInGame.y
+      }
+    });
+
+    document.body.addEventListener("keydown", (e) => { // e.keyCode   z=90  m=77 b=66  shift = 16  c = 67
+      if (game.testing && e.keyCode === 90 && game.constructMapString.length) {
+        if (game.constructMapString[game.constructMapString.length - 1][6] === 'm') { //remove map
+          game.constructMapString.pop();
+          game.outputMapString();
+          //remove from current level
+          const index = map.length - 1
+          Matter.World.remove(engine.world, map[index]);
+          map.splice(index, 1);
+          game.draw.setPaths() //update map graphics  
+        } else if (game.constructMapString[game.constructMapString.length - 1][6] === 'b') { //remove body
+          game.constructMapString.pop();
+          game.outputMapString();
+          //remove from current level
+          const index = body.length - 1
+          Matter.World.remove(engine.world, body[index]);
+          body.splice(index, 1);
+        }
+      }
+    });
   }
 };
\ No newline at end of file
diff --git a/js/index.js b/js/index.js
index c7b3ea3..f31bc01 100644
--- a/js/index.js
+++ b/js/index.js
@@ -268,39 +268,7 @@ const build = {
     document.getElementById("build-grid").style.display = "grid"
   },
   shareURL() {
-    // Create a fake textarea
-    const textAreaEle = document.createElement('textarea');
-
-    // Reset styles
-    textAreaEle.style.border = '0';
-    textAreaEle.style.padding = '0';
-    textAreaEle.style.margin = '0';
-
-    // Set the absolute position
-    // User won't see the element
-    textAreaEle.style.position = 'absolute';
-    textAreaEle.style.left = '-9999px';
-    textAreaEle.style.top = `0px`;
-
-    // Set the value
-    textAreaEle.value = build.generateURL();
-
-    // Append the textarea to body
-    document.body.appendChild(textAreaEle);
-
-    // Focus and select the text
-    textAreaEle.focus();
-    textAreaEle.select();
-
-    // Execute the "copy" command
-    try {
-      document.execCommand('copy');
-    } catch (err) {
-      // Unable to copy
-    } finally {
-      // Remove the textarea
-      document.body.removeChild(textAreaEle);
-    }
+    game.copyToClipBoard(build.generateURL())
     alert('n-gon build URL copied to clipboard.\nPaste into browser address bar.')
   },
   generateURL() {
diff --git a/js/level.js b/js/level.js
index aaaff3a..1ff5b3d 100644
--- a/js/level.js
+++ b/js/level.js
@@ -14,18 +14,18 @@ const level = {
   start() {
     if (build.isURLBuild && level.levelsCleared === 0) build.onLoadPowerUps();
     if (level.levelsCleared === 0) { //this code only runs on the first level
+      // game.enableConstructMode() //used to build maps in testing mode
       // level.difficultyIncrease(9)
       // b.giveGuns("foam")
       // mech.setField("time dilation field")
       // b.giveMod("renormalization");
       // b.giveMod("quantum tunneling");
-      // b.giveGuns("grenades")
-      // b.giveMod("rocket-propelled grenade");
+      // b.giveGuns("rail gun")
       // mech.setField("pilot wave")
       // mech.setField("perfect diamagnetism")
 
-      level.intro(); //starting level
-      // level.testing();
+      // level.intro(); //starting level
+      level.testing();
       // level.stronghold()
       // level.bosses();
       // level.satellite();
@@ -152,19 +152,18 @@ const level = {
     spawn.mapRect(6400, -200, 400, 300); //right wall
     spawn.mapRect(6700, -1800, 800, 2600); //right wall
     spawn.mapRect(level.exit.x, level.exit.y + 20, 100, 100); //exit bump
+    spawn.boost(1500, 0, 900);
 
     // spawn.bomberBoss(2900, -500)
-    spawn.suckerBoss(1200, -500)
-    // spawn.hopper(1200, -500)
+    // spawn.suckerBoss(1200, -500)
+    // spawn.hopper(1200, -500, 70)
+    // spawn.hopper(1200, -500, 100)
     // spawn.shield(mob[mob.length - 1], 1200, -500, 1);
 
     // spawn.nodeBoss(1200, -500, "spiker")
-    // spawn.hopper(1200, -500)
+    spawn.spiderBoss(1200, -500)
     // spawn.timeSkipBoss(2900, -500)
     // spawn.randomMob(1600, -500)
-    spawn.boost()
-    spawn.boost(1500, 0, 1400);
-
   },
   bosses() {
     level.defaultZoom = 1500
@@ -591,7 +590,9 @@ const level = {
     spawn.randomBoss(1600, -100, 0);
     spawn.randomBoss(5000, -3900, -0.3);
     if (game.difficulty > 3) {
-      if (Math.random() < 0.25) {
+      if (Math.random() < 0.1) {
+        spawn.randomLevelBoss(2800, -1400);
+      } else if (Math.random() < 0.25) {
         spawn.laserBoss(2900 + 300 * Math.random(), -2950 + 150 * Math.random());
       } else if (Math.random() < 0.33) {
         spawn.laserBoss(1800 + 250 * Math.random(), -2600 + 150 * Math.random());
@@ -975,7 +976,7 @@ const level = {
     spawn.randomBoss(4000, -350, 0.6);
     spawn.randomBoss(2750, -550, 0.1);
     if (game.difficulty > 2) {
-      if (Math.random() < 0.1) { // tether ball
+      if (Math.random() < 0.09) { // tether ball
         spawn.tetherBoss(4250, 0)
         cons[cons.length] = Constraint.create({
           pointA: {
@@ -986,6 +987,9 @@ const level = {
           stiffness: 0.00007
         });
         if (game.difficulty > 4) spawn.nodeBoss(4250, 0, "spawns", 8, 20, 105); //chance to spawn a ring of exploding mobs around this boss
+      }
+      if (Math.random() < 0.08) {
+        spawn.randomLevelBoss(4250, -250);
       } else {
         //floor below right tall tower
         spawn.bodyRect(3000, 50, 150, 250, 0.9);
@@ -1343,7 +1347,6 @@ const level = {
     spawn.randomBoss(-3250, -2700, 0.2);
     spawn.randomBoss(-2450, -1100, 0);
     if (game.difficulty > 4) spawn.randomLevelBoss(-3400, -2800);
-
   },
   warehouse() {
     level.defaultZoom = 1300
@@ -1522,7 +1525,13 @@ const level = {
     //spawn.randomMob(1120, -1200, 0.3);
     //spawn.randomSmallMob(2200, -1775);
 
-    if (game.difficulty > 2) spawn.snakeBoss(-1300 + Math.random() * 2000, -2200); //boss snake with head
+    if (game.difficulty > 3) {
+      if (Math.random() < 0.1) {
+        spawn.randomLevelBoss(-800, -1300)
+      } else {
+        spawn.snakeBoss(-1300 + Math.random() * 2000, -2200); //boss snake with head
+      }
+    }
   },
   office() {
     level.defaultZoom = 1400
diff --git a/js/mobs.js b/js/mobs.js
index 034820e..6c2a3f4 100644
--- a/js/mobs.js
+++ b/js/mobs.js
@@ -992,11 +992,11 @@ const mobs = {
             }
           }
           if (Math.random() < b.isModBotSpawner) {
-            (Math.random() < 0.5) ? b.nailBot(): b.laserBot()
+            (Math.random() < 0.5) ? b.nailBot(this.position): b.laserBot(this.position)
+            if (mech.energy > 0.33) mech.energy -= 0.33
           }
           if (b.isModExplodeMob) b.explosion(this.position, Math.min(450, Math.sqrt(this.mass + 3) * 80))
         }
-
       },
       removeConsBB() {
         for (let i = 0, len = consBB.length; i < len; ++i) {
@@ -1040,20 +1040,31 @@ const mobs = {
       },
       //replace dead mob with a regular body
       replace(i) {
-        //large mobs or too many bodies go intangible and fall until removed from game to help performance
-        if (this.leaveBody && this.mass < 10 && body.length < 50) {
+        //if there are too many bodies don't turn into blocks to help performance
+        if (this.leaveBody && body.length < 60 && this.mass < 100) {
           const len = body.length;
           body[len] = Matter.Bodies.fromVertices(this.position.x, this.position.y, this.vertices);
           Matter.Body.setVelocity(body[len], this.velocity);
           Matter.Body.setAngularVelocity(body[len], this.angularVelocity);
           body[len].collisionFilter.category = cat.body;
           body[len].collisionFilter.mask = cat.player | cat.map | cat.body | cat.bullet | cat.mob | cat.mobBullet;
-
           // if (body[len].mass > 10 || 45 + 10 * Math.random() < body.length) {
           //   body[len].collisionFilter.mask = cat.player | cat.bullet | cat.mob | cat.mobBullet;
           // }
           body[len].classType = "body";
           World.add(engine.world, body[len]); //add to world
+
+          //large mobs shrink so they don't block paths
+          if (body[len].mass > 10) {
+            const shrink = function (that, massLimit) {
+              if (that.mass > massLimit) {
+                const scale = 0.95;
+                Matter.Body.scale(that, scale, scale);
+                setTimeout(shrink, 20, that, massLimit);
+              }
+            };
+            shrink(body[len], 9 + 5 * Math.random())
+          }
         }
         Matter.World.remove(engine.world, this);
         mob.splice(i, 1);
diff --git a/js/player.js b/js/player.js
index ee95473..2ea2776 100644
--- a/js/player.js
+++ b/js/player.js
@@ -371,7 +371,7 @@ const mech = {
             if (b.mods[i].count < b.mods[i].maxCount &&
               b.mods[i].name !== "quantum immortality" &&
               b.mods[i].name !== "Born rule" &&
-              b.mods[i].name !== "leveraged investment" &&
+              b.mods[i].name !== "determinism" &&
               b.mods[i].name !== "reallocation" &&
               b.mods[i].allowed()
             ) options.push(i);
@@ -603,7 +603,7 @@ const mech = {
 
     // freeze game and display a full screen red color
     if (dmg > 0.05) {
-      if (dmg > 0.15 * mech.holdingMassScale) mech.drop(); //drop block if holding
+      if (dmg > 0.20 * mech.holdingMassScale) mech.drop(); //drop block if holding
       game.fpsCap = 4 //40 - Math.min(25, 100 * dmg)
       game.fpsInterval = 1000 / game.fpsCap;
     } else {
@@ -714,6 +714,13 @@ const mech = {
     mech.knee.x = (l / d) * (mech.foot.x - mech.hip.x) - (h / d) * (mech.foot.y - mech.hip.y) + mech.hip.x + offset;
     mech.knee.y = (l / d) * (mech.foot.y - mech.hip.y) + (h / d) * (mech.foot.x - mech.hip.x) + mech.hip.y;
   },
+  // collisionImmune: false,
+  // beginCollisionImmune() {
+
+  // },
+  // endCollisionImmune() {
+
+  // },
   draw() {
     // mech.fillColor = (mech.collisionImmuneCycle < mech.cycle) ? "#fff" : "rgba(255,255,255,0.1)" //"#cff"
     ctx.fillStyle = mech.fillColor;
@@ -721,6 +728,12 @@ const mech = {
 
     //draw body
     ctx.save();
+    // if (mech.collisionImmuneCycle < mech.cycle) {
+    //   ctx.globalAlpha = 1
+    //   if (mech.collisionImmune) mech.collisionImmune = false;
+    // } else {
+    //   ctx.globalAlpha = 0.7
+    // }
     ctx.globalAlpha = (mech.collisionImmuneCycle < mech.cycle) ? 1 : 0.7
     ctx.translate(mech.pos.x, mech.pos.y);
     mech.calcLeg(Math.PI, -3);
diff --git a/js/powerups.js b/js/powerups.js
index 7b3bddb..20d99a1 100644
--- a/js/powerups.js
+++ b/js/powerups.js
@@ -81,7 +81,7 @@ const powerUps = {
           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())));
+          let ammo = Math.ceil((target.ammoPack * (0.8 + 0.25 * Math.random())));
           // if (level.isBuildRun) ammo = Math.floor(ammo * 1.1) //extra ammo on build run because no ammo from getting a new gun
           target.ammo += ammo;
           game.updateGunHUD();
@@ -115,7 +115,7 @@ const powerUps = {
       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> ${mech.fieldUpgrades[choice1].description}</div>`
-        if (!b.isModBayesian) {
+        if (!b.isModDeterminism) {
           choice2 = pick(mech.fieldUpgrades, choice1)
           if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('field',${choice2})"><div class="grid-title"><div class="circle-grid field"></div> &nbsp; ${mech.fieldUpgrades[choice2].name}</div> ${mech.fieldUpgrades[choice2].description}</div>`
           choice3 = pick(mech.fieldUpgrades, choice1, choice2)
@@ -160,7 +160,7 @@ const powerUps = {
       if (choice1 > -1) {
         let text = `<div class='cancel' onclick='powerUps.cancel("mod")'>✕</div><h3 style = 'color:#fff; text-align:left; margin: 0px;'>choose a mod</h3>`
         text += `<div class="choose-grid-module" onclick="powerUps.choose('mod',${choice1})"><div class="grid-title"><div class="circle-grid mod"></div> &nbsp; ${b.mods[choice1].name}</div> ${b.mods[choice1].description}</div>`
-        if (!b.isModBayesian) {
+        if (!b.isModDeterminism) {
           choice2 = pick(choice1)
           if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('mod',${choice2})"><div class="grid-title"><div class="circle-grid mod"></div> &nbsp; ${b.mods[choice2].name}</div> ${b.mods[choice2].description}</div>`
           choice3 = pick(choice1, choice2)
@@ -198,7 +198,7 @@ const powerUps = {
       if (choice1 > -1) {
         let text = `<div class='cancel' onclick='powerUps.cancel("gun")'>✕</div><h3 style = 'color:#fff; text-align:left; margin: 0px;'>choose a gun</h3>`
         text += `<div class="choose-grid-module" onclick="powerUps.choose('gun',${choice1})"><div class="grid-title"><div class="circle-grid gun"></div> &nbsp; ${b.guns[choice1].name}</div> ${b.guns[choice1].description}</div>`
-        if (!b.isModBayesian) {
+        if (!b.isModDeterminism) {
           choice2 = pick(b.guns, choice1)
           if (choice2 > -1) text += `<div class="choose-grid-module" onclick="powerUps.choose('gun',${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)
@@ -230,43 +230,43 @@ const powerUps = {
   spawnRandomPowerUp(x, y) { //mostly used after mob dies 
     if ((Math.random() * Math.random() - 0.3 > Math.sqrt(mech.health) && !b.isModEnergyHealth) || Math.random() < 0.035) { //spawn heal chance is higher at low health
       powerUps.spawn(x, y, "heal");
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "heal");
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "heal");
       return;
     }
-    if (Math.random() < 0.15 && b.inventory.length > 0 && !b.isModNoAmmo) {
+    if (Math.random() < 0.15 && b.inventory.length > 0 && !b.modBayesian) {
       powerUps.spawn(x, y, "ammo");
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "ammo");
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "ammo");
       return;
     }
     if (Math.random() < 0.002 * (3 - b.inventory.length)) { //a new gun has a low chance for each not acquired gun up to 3
       powerUps.spawn(x, y, "gun");
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "gun");
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "gun");
       return;
     }
     if (Math.random() < 0.0027 * (15 - b.modCount)) { //a new mod has a low chance for each not acquired mod up to 15
       powerUps.spawn(x, y, "mod");
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "mod");
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "mod");
       return;
     }
     if (Math.random() < 0.006) {
       powerUps.spawn(x, y, "field");
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "field");
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "field");
       return;
     }
   },
   spawnBossPowerUp(x, y) { //boss spawns field and gun mod upgrades
     if (mech.fieldMode === 0) {
       powerUps.spawn(x, y, "field")
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "field")
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "field")
     } else if (Math.random() < 0.9) {
       powerUps.spawn(x, y, "mod")
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "mod")
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "mod")
     } else if (Math.random() < 0.5) {
       powerUps.spawn(x, y, "gun")
-      if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "gun")
+      if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "gun")
       // } else if (Math.random() < 0.5) {
       //   powerUps.spawn(x, y, "field");
-      //   if (Math.random() < b.isModBayesian) powerUps.spawn(x, y, "field");
+      //   if (Math.random() < b.modBayesian) powerUps.spawn(x, y, "field");
     } else if (mech.health < 0.65 && !b.isModEnergyHealth) {
       powerUps.spawn(x, y, "heal");
       powerUps.spawn(x, y, "heal");
@@ -274,18 +274,18 @@ const powerUps = {
       powerUps.spawn(x, y, "heal");
       powerUps.spawn(x, y, "heal");
       powerUps.spawn(x, y, "heal");
-      if (Math.random() < b.isModBayesian) {
+      if (Math.random() < b.modBayesian) {
         powerUps.spawn(x, y, "heal");
         powerUps.spawn(x, y, "heal");
         powerUps.spawn(x, y, "heal");
       }
-    } else if (!b.isModNoAmmo) {
+    } else if (!b.modBayesian) {
       powerUps.spawn(x, y, "ammo");
       powerUps.spawn(x, y, "ammo");
       powerUps.spawn(x, y, "ammo");
       powerUps.spawn(x, y, "ammo");
       powerUps.spawn(x, y, "ammo");
-      if (Math.random() < b.isModBayesian) {
+      if (Math.random() < b.modBayesian) {
         powerUps.spawn(x, y, "ammo");
         powerUps.spawn(x, y, "ammo");
         powerUps.spawn(x, y, "ammo");
@@ -296,21 +296,27 @@ const powerUps = {
     if (Math.random() < 0.5) {
       powerUps.spawn(x, y, "heal", false);
     } else {
-      if (!b.isModNoAmmo) powerUps.spawn(x, y, "ammo", false);
+      if (!b.modBayesian) powerUps.spawn(x, y, "ammo", false);
     }
   },
   spawnStartingPowerUps(x, y) { //used for map specific power ups, mostly to give player a starting gun
-    if (b.inventory.length === 0) {
-      powerUps.spawn(x, y, "gun", false);
-    } else if (b.modCount === 0) {
-      powerUps.spawn(x, y, "mod", false); //starting gun
-    } else if (b.inventory.length < 2) {
-      powerUps.spawn(x, y, "gun", false);
+    if (level.levelsCleared < 5) {
+      if (b.inventory.length === 0) {
+        powerUps.spawn(x, y, "gun", false);
+      } else if (b.modCount === 0) {
+        powerUps.spawn(x, y, "mod", false); //starting gun
+      } else if (b.inventory.length < 2) {
+        powerUps.spawn(x, y, "gun", false);
+      } else {
+        powerUps.spawnRandomPowerUp(x, y);
+        powerUps.spawnRandomPowerUp(x, y);
+        powerUps.spawnRandomPowerUp(x, y);
+        powerUps.spawnRandomPowerUp(x, y);
+      }
     } else {
       powerUps.spawnRandomPowerUp(x, y);
       powerUps.spawnRandomPowerUp(x, y);
       powerUps.spawnRandomPowerUp(x, y);
-      powerUps.spawnRandomPowerUp(x, y);
     }
   },
   spawn(x, y, target, moving = true, mode = null) {
diff --git a/js/spawn.js b/js/spawn.js
index 6a3d972..eb6aad6 100644
--- a/js/spawn.js
+++ b/js/spawn.js
@@ -81,7 +81,7 @@ const spawn = {
   },
   randomLevelBoss(x, y) {
     // suckerBoss, laserBoss, tetherBoss, snakeBoss   all need a particular level to work so they are not included
-    const options = ["shooterBoss", "cellBossCulture", "bomberBoss"] //, "timeSkipBoss"
+    const options = ["spiderBoss"] //, "timeSkipBoss"  //"shooterBoss", "cellBossCulture", "bomberBoss",
     // const options = ["timeSkipBoss"]
     spawn[options[Math.floor(Math.random() * options.length)]](x, y)
   },
@@ -329,6 +329,7 @@ const spawn = {
     let me = mob[mob.length - 1];
     me.big = false; //required for grow
     me.accelMag = 0.00045 * game.accelScale;
+    me.collisionFilter.mask = cat.map | cat.body | cat.bullet | cat.player //can't touch other mobs
     me.do = function () {
       this.seePlayerByLookingAt();
       this.checkStatus();
@@ -384,7 +385,6 @@ const spawn = {
       this.searchSpring();
       this.checkStatus();
       this.springAttack();
-      //not properly effected by stun, if looking at player while stun will still attack...
     };
   },
   hopper(x, y, radius = 30 + Math.ceil(Math.random() * 30)) {
@@ -638,6 +638,82 @@ const spawn = {
       }
     }
   },
+  spiderBoss(x, y, radius = 50 + Math.ceil(Math.random() * 10)) {
+    let targets = [] //track who is in the node boss, for shields
+    mobs.spawn(x, y, 6, radius, "#b386e8");
+    let me = mob[mob.length - 1];
+    targets.push(me.id) //add to shield protection
+    me.friction = 0;
+    me.frictionAir = 0.0065;
+    me.lookTorque = 0.0000008; //controls spin while looking for player
+    me.g = 0.00025; //required if using 'gravity'
+    me.seePlayerFreq = Math.round((40 + 25 * Math.random()) * game.lookFreqScale);
+    const springStiffness = 0.00006;
+    const springDampening = 0.0006;
+
+    me.springTarget = {
+      x: me.position.x,
+      y: me.position.y
+    };
+    const len = cons.length;
+    cons[len] = Constraint.create({
+      pointA: me.springTarget,
+      bodyB: me,
+      stiffness: springStiffness,
+      damping: springDampening
+    });
+    cons[len].length = 100 + 1.5 * radius;
+    me.cons = cons[len];
+
+    me.springTarget2 = {
+      x: me.position.x,
+      y: me.position.y
+    };
+    const len2 = cons.length;
+    cons[len2] = Constraint.create({
+      pointA: me.springTarget2,
+      bodyB: me,
+      stiffness: springStiffness,
+      damping: springDampening
+    });
+    cons[len2].length = 100 + 1.5 * radius;
+    me.cons2 = cons[len2];
+    // Matter.Body.setDensity(me, 0.001); //extra dense //normal is 0.001 //makes effective life much larger
+    me.onDeath = function () {
+      this.removeCons();
+      powerUps.spawnBossPowerUp(this.position.x, this.position.y)
+    };
+    me.do = function () {
+      this.gravity();
+      this.searchSpring();
+      this.checkStatus();
+      this.springAttack();
+    };
+
+    radius = 22 // radius of each node mob
+    const sideLength = 100 // distance between each node mob
+    const nodes = 6
+    const angle = 2 * Math.PI / nodes
+
+    spawn.allowShields = false; //don't want shields on individual boss mobs
+
+    for (let i = 0; i < nodes; ++i) {
+      spawn.stabber(x + sideLength * Math.sin(i * angle), y + sideLength * Math.cos(i * angle), radius);
+      targets.push(mob[mob.length - 1].id) //track who is in the node boss, for shields
+    }
+    //spawn shield for entire boss
+    spawn.bossShield(targets, x, y, sideLength + 1 * radius + nodes * 5 - 25);
+    spawn.allowShields = true;
+
+    spawn.constrain2AdjacentMobs(nodes + 1, 0.05, true); //loop mobs together
+    for (let i = 0; i < nodes; ++i) { //attach to center mob
+      consBB[consBB.length] = Constraint.create({
+        bodyA: me,
+        bodyB: mob[mob.length - i - 1],
+        stiffness: 0.05
+      });
+    }
+  },
   timeSkipBoss(x, y, radius = 70) {
     mobs.spawn(x, y, 6, radius, '#000');
     let me = mob[mob.length - 1];
@@ -945,6 +1021,7 @@ const spawn = {
     me.spikeLength = 0;
     me.isSpikeGrowing = false;
     me.isSpikeReset = true;
+    me.collisionFilter.mask = cat.map | cat.body | cat.bullet | cat.player //can't touch other mobs
     Matter.Body.rotate(me, Math.PI * 0.1);
     spawn.shield(me, x, y);
     // me.onDamage = function () {};
@@ -1013,7 +1090,7 @@ const spawn = {
     me.g = 0.0002; //required if using 'gravity'
     me.frictionStatic = 0;
     me.friction = 0;
-    me.delay = 120 * game.CDScale;
+    me.delay = 90 * game.CDScale;
     me.cd = Infinity;
     Matter.Body.rotate(me, Math.PI * 0.1);
     spawn.shield(me, x, y);
diff --git a/style.css b/style.css
index b878e1a..574350d 100644
--- a/style.css
+++ b/style.css
@@ -95,6 +95,25 @@ summary {
   /* transition: display 0.5s; */
 }
 
+#construct {
+  display: none;
+  position: absolute;
+  bottom: 0%;
+  right: 0%;
+  z-index: 1;
+  width: 300px;
+  height: 320px;
+  background-color: #fff;
+  color: #000;
+  font-size: 0.9em;
+  user-select: text;
+  white-space: pre;
+  padding: 3px;
+  overflow: scroll;
+  /* border-radius: 0px; */
+  border: 2px #333 solid;
+}
+
 #choose-grid {
   position: absolute;
   top: 50%;
diff --git a/todo.txt b/todo.txt
index 3a64700..be95822 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,10 +1,24 @@
 
 
-foam gun now slows down when touching walls
-mod - quantum foam now bypasses shields
-Bayesian now only give one mod choice on election, but 33% (from 20%) chance at double power ups
+large mods shrink on death instead of disappearing
+new boss mob:  spiderBoss
+mod - Bayesian interference -> determinism 
+   spawn 4 mods and 2 heals, future power ups are limited to one choice
+mod - Leveraged investments -> Bayesian interference
+   33% chance for double power ups to drop, remove all future ammo power ups
+
+(serious progress on my level construction tools, but it's not ready yet)
+
 ************** TODO - n-gon **************
 
+construct
+  display outline of map to be draw while mouse is down
+  toggle between maps and bodies
+  ?highlight map/body mouse is over and be able to remove it?
+  display current output text in a box
+    live update it
+
+
 mod - blocking with perfect diamagnetism fires your gun
   maybe doesn't trigger cooldown?
   does use ammo