diff --git a/js/bullet.js b/js/bullet.js
index af4fac3..94143ba 100644
--- a/js/bullet.js
+++ b/js/bullet.js
@@ -369,7 +369,7 @@ const b = {
       stillCount: 0,
       isArmed: false,
       endCycle: Infinity,
-      lookFrequency: 41 + Math.floor(23 * Math.random()),
+      lookFrequency: 0,
       range: 700,
       onDmg() {},
       do() {
@@ -423,26 +423,33 @@ const b = {
         if (this.stillCount > 25) this.arm();
       },
       arm() {
-        this.isArmed = true
-        game.drawList.push({
-          //add dmg to draw queue
-          x: this.position.x,
-          y: this.position.y,
-          radius: 10,
-          color: "#f00",
-          time: 4
-        });
-
+        this.lookFrequency = game.cycle + 60
         this.do = function () { //overwrite the do method for this bullet
           this.force.y += this.mass * 0.002; //extra gravity
-          if (!(game.cycle % this.lookFrequency)) { //find mob targets
-            for (let i = 0, len = mob.length; i < len; ++i) {
-              if (Vector.magnitudeSquared(Vector.sub(this.position, mob[i].position)) < 500000 &&
-                mob[i].dropPowerUp &&
-                Matter.Query.ray(map, this.position, mob[i].position).length === 0 &&
-                Matter.Query.ray(body, this.position, mob[i].position).length === 0) {
-                this.endCycle = 0 //end life if mob is near and visible
-                if (Math.random() < 0.8) isAmmoBack = false; //20% chance to get ammo back after detonation
+
+          if (game.cycle > this.lookFrequency) {
+            this.isArmed = true
+            this.lookFrequency = 50 + Math.floor(27 * Math.random())
+            game.drawList.push({
+              //add dmg to draw queue
+              x: this.position.x,
+              y: this.position.y,
+              radius: 10,
+              color: "#f00",
+              time: 4
+            });
+            this.do = function () { //overwrite the do method for this bullet
+              this.force.y += this.mass * 0.002; //extra gravity
+              if (!(game.cycle % this.lookFrequency)) { //find mob targets
+                for (let i = 0, len = mob.length; i < len; ++i) {
+                  if (Vector.magnitudeSquared(Vector.sub(this.position, mob[i].position)) < 500000 &&
+                    mob[i].dropPowerUp &&
+                    Matter.Query.ray(map, this.position, mob[i].position).length === 0 &&
+                    Matter.Query.ray(body, this.position, mob[i].position).length === 0) {
+                    this.endCycle = 0 //end life if mob is near and visible
+                    if (Math.random() < 0.8) isAmmoBack = false; //20% chance to get ammo back after detonation
+                  }
+                }
               }
             }
           }
@@ -726,7 +733,7 @@ const b = {
               let closeDist = Infinity;
               for (let i = 0, len = powerUp.length; i < len; ++i) {
                 if (
-                  ((powerUp[i].name !== "field" && powerUp[i].name !== "heal") || (powerUp[i].name === "heal" && mech.health < 0.9)) &&
+                  ((powerUp[i].name !== "field" && powerUp[i].name !== "heal") || (powerUp[i].name === "heal" && mech.health < 0.9 * mech.maxHealth)) &&
                   Matter.Query.ray(map, this.position, powerUp[i].position).length === 0 &&
                   Matter.Query.ray(body, this.position, powerUp[i].position).length === 0
                 ) {
@@ -2714,32 +2721,40 @@ const b = {
           v1: null,
           v2: null
         };
-        vertexCollision(path[0], path[1], mob);
-        vertexCollision(path[0], path[1], map);
-        vertexCollision(path[0], path[1], body);
-        if (best.dist2 != Infinity) { //if hitting something
-          path[path.length - 1] = {
-            x: best.x,
-            y: best.y
-          };
+        if (mod.isPulseAim) { //find mobs in line of sight
+          for (let i = 0, len = mob.length; i < len; i++) {
+            if (Vector.magnitude(Vector.sub(path[0], mob[i].position)) < 2200 &&
+              Matter.Query.ray(map, path[0], mob[i].position).length === 0 &&
+              Matter.Query.ray(body, path[0], mob[i].position).length === 0) {
+              best.who = mob[i]
+              path[path.length - 1] = mob[i].position
+              break
+            }
+          }
         }
-
-        //use energy to explode
-        let energy;
-        if (mod.isRapidPulse) {
-          energy = 0.02 + 0.06 * Math.min(mech.energy, 1.75)
-          if (mech.energy < energy) return
+        if (!best.who) {
+          vertexCollision(path[0], path[1], mob);
+          vertexCollision(path[0], path[1], map);
+          vertexCollision(path[0], path[1], body);
+          if (best.dist2 != Infinity) { //if hitting something
+            path[path.length - 1] = {
+              x: best.x,
+              y: best.y
+            };
+          }
+        }
+        let energy
+        if (mod.isPulseAim) {
+          energy = 0.25 * Math.min(mech.energy, 1.75)
           mech.energy -= energy * mod.isLaserDiode
-          if (best.who) b.explosion(path[1], 2000 * energy, true)
-          mech.fireCDcycle = mech.cycle + Math.floor(15 * b.fireCD); // cool down
+          if (best.who) b.explosion(path[1], 1000 * energy, true)
+          mech.fireCDcycle = mech.cycle + Math.floor(25 * b.fireCD); // cool down
         } else {
           energy = 0.3 * Math.min(mech.energy, 1.75)
           mech.energy -= energy * mod.isLaserDiode
           if (best.who) b.explosion(path[1], 1000 * energy, true)
           mech.fireCDcycle = mech.cycle + Math.floor(50 * b.fireCD); // cool down
         }
-
-
         if (mod.isPulseStun) {
           const range = 100 + 2000 * energy
           for (let i = 0, len = mob.length; i < len; ++i) {
diff --git a/js/level.js b/js/level.js
index 36fa4ea..8c2b641 100644
--- a/js/level.js
+++ b/js/level.js
@@ -17,9 +17,10 @@ const level = {
       // game.enableConstructMode() //used to build maps in testing mode
       // level.difficultyIncrease(9)
       // mech.isStealth = true;
-      // mod.giveMod("necrophoresis");
-      // b.giveGuns("foam")
-      // mech.setField("time dilation field")
+      // mod.giveMod("logistics");
+      // mod.giveMod("supply chain");
+      // b.giveGuns("pulse")
+      // mech.setField("phase decoherence field")
 
       level.intro(); //starting level
       // level.testing(); 
diff --git a/js/mob.js b/js/mob.js
index 97be741..3e07b52 100644
--- a/js/mob.js
+++ b/js/mob.js
@@ -188,7 +188,7 @@ const mobs = {
       onHit: undefined,
       alive: true,
       index: i,
-      health: 1,
+      health: mod.mobSpawnWithHealth,
       showHealthBar: true,
       accelMag: 0.001 * game.accelScale,
       cd: 0, //game cycle when cooldown will be over
@@ -972,7 +972,7 @@ const mobs = {
           this.health -= dmg
           //this.fill = this.color + this.health + ')';
           this.onDamage(dmg); //custom damage effects
-          if (this.health < mod.mobDieAtHealth && this.alive) this.death();
+          if (this.health < 0.05 && this.alive) this.death();
         }
       },
       onDamage() {
diff --git a/js/mods.js b/js/mods.js
index bdcd1d8..5f597a4 100644
--- a/js/mods.js
+++ b/js/mods.js
@@ -113,7 +113,7 @@ const mod = {
     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>5.5%</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() {
@@ -227,7 +227,7 @@ const mod = {
         },
         {
             name: "auto-loading heuristics",
-            description: "<strong>+20%</strong> decreased <strong>delay</strong> after firing",
+            description: "<strong>20%</strong> decreased <strong>delay</strong> after firing",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -244,7 +244,7 @@ const mod = {
             }
         },
         {
-            name: "electrostatic shots",
+            name: "electrostatic discharge",
             description: "<strong>25%</strong> increased <strong class='color-d'>damage</strong><br><strong>25%</strong> increased <strong>delay</strong> after firing",
             maxCount: 1,
             count: 0,
@@ -329,7 +329,7 @@ const mod = {
         },
         {
             name: "scrap bots",
-            description: "<strong>+12%</strong> chance to build a <strong>bot</strong> after killing a mob<br>the bot only functions until the end of the level",
+            description: "<strong>12%</strong> chance to build a <strong>bot</strong> after killing a mob<br>the bot only functions until the end of the level",
             maxCount: 6,
             count: 0,
             allowed() {
@@ -421,7 +421,7 @@ const mod = {
         },
         {
             name: "zoospore vector",
-            description: "mobs produce <strong class='color-p' style='letter-spacing: 2px;'>spores</strong> when they <strong>die</strong><br><strong>+11%</strong> chance",
+            description: "mobs produce <strong class='color-p' style='letter-spacing: 2px;'>spores</strong> when they <strong>die</strong><br><strong>11%</strong> chance",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -456,7 +456,7 @@ const mod = {
         },
         {
             name: "impact shear",
-            description: "mobs release <strong>+2</strong> <strong>nails</strong> when they <strong>die</strong><br>nails target nearby mobs",
+            description: "mobs release <strong>2</strong> <strong>nails</strong> when they <strong>die</strong><br>nails target nearby mobs",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -472,18 +472,23 @@ const mod = {
         },
         {
             name: "reaction inhibitor",
-            description: "mobs <strong>die</strong> if their life goes below <strong>12%</strong>",
-            maxCount: 1,
+            description: "mobs spawn with <strong>12%</strong> less <strong>health</strong>",
+            maxCount: 3,
             count: 0,
             allowed() {
                 return true
             },
             requires: "",
             effect: () => {
-                mod.mobDieAtHealth = 0.15
+                mod.mobSpawnWithHealth *= 0.88
+
+                //set all mobs at full health to 0.85
+                for (let i = 0; i < mob.length; i++) {
+                    if (mob.health > mod.mobSpawnWithHealth) mob.health = mod.mobSpawnWithHealth
+                }
             },
             remove() {
-                mod.mobDieAtHealth = 0.05;
+                mod.mobSpawnWithHealth = 1;
             }
         },
         {
@@ -540,7 +545,7 @@ const mod = {
         },
         {
             name: "Pauli exclusion",
-            description: `<strong>immune</strong> to <strong>harm</strong> for <strong>+1</strong> seconds<br>activates after being <strong>harmed</strong> from a collision`,
+            description: `<strong>immune</strong> to <strong>harm</strong> for <strong>1</strong> seconds<br>activates after being <strong>harmed</strong> from a collision`,
             maxCount: 9,
             count: 0,
             allowed() {
@@ -654,7 +659,7 @@ const mod = {
         },
         {
             name: "energy conservation",
-            description: "<strong>+13%</strong> of <strong class='color-d'>damage</strong> done recovered as <strong class='color-f'>energy</strong>",
+            description: "<strong>13%</strong> of <strong class='color-d'>damage</strong> done recovered as <strong class='color-f'>energy</strong>",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -670,7 +675,7 @@ const mod = {
         },
         {
             name: "overcharge",
-            description: "increase your <strong>maximum</strong> <strong class='color-f'>energy</strong> by <strong>+50%</strong>",
+            description: "increase your <strong>maximum</strong> <strong class='color-f'>energy</strong> by <strong>50%</strong>",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -687,7 +692,7 @@ const mod = {
         },
         {
             name: "entropy exchange",
-            description: "<strong class='color-h'>heal</strong> for <strong>+1.5%</strong> of <strong class='color-d'>damage</strong> done",
+            description: "<strong class='color-h'>heal</strong> for <strong>1.5%</strong> of <strong class='color-d'>damage</strong> done",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -703,7 +708,7 @@ const mod = {
         },
         {
             name: "supersaturation",
-            description: "increase your <strong>maximum</strong> <strong class='color-h'>health</strong> by <strong>+50%</strong>",
+            description: "increase your <strong>maximum</strong> <strong class='color-h'>health</strong> by <strong>50%</strong>",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -754,7 +759,7 @@ const mod = {
         },
         {
             name: "recursive healing",
-            description: "<strong class='color-h'>healing</strong> <strong>power ups</strong> trigger <strong>+1</strong> more time",
+            description: "<strong class='color-h'>healing</strong> <strong>power ups</strong> trigger <strong>1</strong> more time",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -837,6 +842,24 @@ const mod = {
                 mod.isAmmoForGun = false;
             }
         },
+        {
+            name: "supply chain",
+            description: "double your current <strong>ammo</strong> for all <strong>gun</strong>",
+            maxCount: 9,
+            count: 0,
+            isNonRefundable: true,
+            allowed() {
+                return mod.isAmmoForGun
+            },
+            requires: "logistics",
+            effect() {
+                for (let i = 0; i < b.guns.length; i++) {
+                    if (b.guns[i].have) b.guns[i].ammo = Math.floor(2 * b.guns[i].ammo)
+                }
+                game.makeGunHUD();
+            },
+            remove() {}
+        },
         {
             name: "catabolism",
             description: "gain <strong>ammo</strong> when you <strong>fire</strong> while <strong>out</strong> of <strong>ammo</strong><br>drains <strong>2%</strong> of <strong>max health</strong>",
@@ -987,7 +1010,7 @@ const mod = {
             description: "<strong>remove</strong> all current <strong class='color-m'>mods</strong><br>spawn new <strong class='color-m'>mods</strong> to replace them",
             maxCount: 1,
             count: 0,
-            isNonRefundable: true,
+            // isNonRefundable: true,
             allowed() {
                 return (mod.totalCount > 6) && !build.isCustomSelection
             },
@@ -1045,7 +1068,7 @@ const mod = {
         //************************************************** 
         {
             name: "Lorentzian topology",
-            description: "your <strong>bullets</strong> last <strong>+33% longer</strong>",
+            description: "your <strong>bullets</strong> last <strong>33% longer</strong>",
             maxCount: 3,
             count: 0,
             allowed() {
@@ -1061,7 +1084,7 @@ const mod = {
         },
         {
             name: "microstates",
-            description: "<strong>+6%</strong> <strong class='color-d'>damage</strong> for every <strong>10</strong> active <strong>bullets</strong>",
+            description: "<strong>6%</strong> <strong class='color-d'>damage</strong> for every <strong>10</strong> active <strong>bullets</strong>",
             maxCount: 1,
             count: 0,
             allowed() {
@@ -1098,7 +1121,7 @@ const mod = {
         },
         {
             name: "depleted uranium rounds",
-            description: `your <strong>bullets</strong> are <strong>+18%</strong> larger<br>increased mass and physical <strong class='color-d'>damage</strong>`,
+            description: `your <strong>bullets</strong> are <strong>18%</strong> larger<br>increased mass and physical <strong class='color-d'>damage</strong>`,
             count: 0,
             maxCount: 9,
             allowed() {
@@ -1195,7 +1218,7 @@ const mod = {
         },
         {
             name: "super duper",
-            description: "fire <strong>+2</strong> additional <strong>super balls</strong>",
+            description: "fire <strong>2</strong> additional <strong>super balls</strong>",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -1357,7 +1380,7 @@ const mod = {
         },
         {
             name: "high explosives",
-            description: "<strong class='color-e'>explosions</strong> do <strong>+20%</strong> more <strong class='color-d'>damage</strong><br><strong class='color-e'>explosive</strong> area is <strong>+44% larger</strong>",
+            description: "<strong class='color-e'>explosions</strong> do <strong>20%</strong> more <strong class='color-d'>damage</strong><br><strong class='color-e'>explosive</strong> area is <strong>44% larger</strong>",
             maxCount: 3,
             count: 0,
             allowed() {
@@ -1389,7 +1412,7 @@ const mod = {
         },
         {
             name: "recursion",
-            description: "after <strong>missiles</strong> <strong class='color-e'>explode</strong><br>they launch <strong>+1</strong> smaller <strong>missile</strong>",
+            description: "after <strong>missiles</strong> <strong class='color-e'>explode</strong><br>they launch <strong>1</strong> smaller <strong>missile</strong>",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -1441,7 +1464,7 @@ const mod = {
         },
         {
             name: "fragmentation grenade",
-            description: "<strong>grenades</strong> are loaded with <strong>+5</strong> nails<br>on detonation <strong>nails</strong> are ejected towards mobs",
+            description: "<strong>grenades</strong> are loaded with <strong>5</strong> nails<br>on detonation <strong>nails</strong> are ejected towards mobs",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -1505,7 +1528,7 @@ const mod = {
         },
         {
             name: "inertial confinement",
-            description: "<strong>neutron bomb's</strong> initial detonation <br><strong>stuns</strong> nearby mobs for <strong>+1</strong> seconds",
+            description: "<strong>neutron bomb's</strong> initial detonation <br><strong>stuns</strong> nearby mobs for <strong>1</strong> seconds",
             maxCount: 3,
             count: 0,
             allowed() {
@@ -1699,7 +1722,7 @@ const mod = {
         },
         {
             name: "specular reflection",
-            description: "<strong>laser</strong> beams gain <strong>+1</strong> reflection<br><strong>+50%</strong> laser <strong class='color-d'>damage</strong> and <strong class='color-f'>energy</strong> drain",
+            description: "<strong>laser</strong> beams gain <strong>1</strong> reflection<br><strong>50%</strong> laser <strong class='color-d'>damage</strong> and <strong class='color-f'>energy</strong> drain",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -1733,22 +1756,23 @@ const mod = {
                 mod.isPulseStun = false;
             }
         },
-        // {
-        //     name: "aim",
-        //     description: "<strong>pulse</strong> <strong class='color-e'>explosions</strong> aim",
-        //     maxCount: 1,
-        //     count: 0,
-        //     allowed() {
-        //         return mod.haveGunCheck("pulse")
-        //     },
-        //     requires: "pulse",
-        //     effect() {
-        //         mod.isPulseAim = true;
-        //     },
-        //     remove() {
-        //         mod.isPulseAim = false;
-        //     }
-        // },
+
+        {
+            name: "neocognitron",
+            description: "<strong>pulse</strong> automatically <strong>aims</strong> at a nearby mob<br><strong>50%</strong> decreased <strong>delay</strong> after firing",
+            maxCount: 1,
+            count: 0,
+            allowed() {
+                return mod.haveGunCheck("pulse")
+            },
+            requires: "pulse",
+            effect() {
+                mod.isPulseAim = true;
+            },
+            remove() {
+                mod.isPulseAim = false;
+            }
+        },
         // {
         //     name: "fast ignition",
         //     description: "<strong>pulse</strong> <strong class='color-e'>explosions</strong> more <strong>efficient</strong><br><strong>delay</strong> after firing is <strong>shorter</strong>",
@@ -1771,7 +1795,7 @@ const mod = {
         //************************************************** 
         {
             name: "flux pinning",
-            description: "blocking with <strong>perfect diamagnetism</strong><br><strong>stuns</strong> mobs for <strong>+1</strong> second",
+            description: "blocking with <strong>perfect diamagnetism</strong><br><strong>stuns</strong> mobs for <strong>1</strong> second",
             maxCount: 9,
             count: 0,
             allowed() {
@@ -2150,7 +2174,7 @@ const mod = {
     laserDamage: null,
     laserFieldDrain: null,
     isAmmoFromHealth: null,
-    mobDieAtHealth: null,
+    mobSpawnWithHealth: null,
     isEnergyRecovery: null,
     isHealthRecovery: null,
     isEnergyLoss: null,
@@ -2205,7 +2229,7 @@ const mod = {
     isArmorFromPowerUps: null,
     isAmmoForGun: null,
     isRapidPulse: null,
-    // isPulseAim: null,
+    isPulseAim: null,
     isSporeFreeze: null,
     isShotgunRecoil: null,
     isHealLowHealth: null
diff --git a/js/player.js b/js/player.js
index a4bce4a..67ce6b3 100644
--- a/js/player.js
+++ b/js/player.js
@@ -1760,7 +1760,7 @@ const mech = {
           // }
 
           function drawField(radius) {
-            radius *= 0.9 + 1 * mech.energy;
+            radius *= 0.9 + 1.5 * mech.energy * mech.energy;
             const rotate = mech.cycle * 0.005;
             mech.fieldPhase += 0.5 - 0.5 * Math.sqrt(Math.max(0.01, Math.min(mech.energy, 1)));
             const off1 = 1 + 0.06 * Math.sin(mech.fieldPhase);
@@ -1801,9 +1801,10 @@ const mech = {
             mech.lookForPickUp();
 
             if (mech.fieldCDcycle < mech.cycle) {
+              // game.draw.bodyFill = "transparent"
+              // game.draw.bodyStroke = "transparent"
 
-
-              const DRAIN = 0.0003 + 0.00015 * player.speed + ((!mod.renormalization && mech.fireCDcycle > mech.cycle) ? 0.005 : 0.001)
+              const DRAIN = 0.0002 + 0.0001 * player.speed + ((!mod.renormalization && mech.fireCDcycle > mech.cycle) ? 0.005 : 0.001)
               if (mech.energy > DRAIN) {
                 mech.energy -= DRAIN;
                 // if (mech.energy < 0.001) {
diff --git a/js/powerup.js b/js/powerup.js
index 127a344..72559a2 100644
--- a/js/powerup.js
+++ b/js/powerup.js
@@ -388,7 +388,7 @@ const powerUps = {
       if (Math.random() < mod.bayesian) powerUps.spawn(x, y, "field");
       return;
     }
-    if (Math.random() < 0.005) {
+    if (Math.random() < 0.01) {
       powerUps.spawn(x, y, "reroll");
       if (Math.random() < mod.bayesian) powerUps.spawn(x, y, "reroll");
       return;
diff --git a/todo.txt b/todo.txt
index 620e576..e09fbb8 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,27 +1,20 @@
 
-damage immunity after a collisions is reduced from 1/2s to 1/4s
-freezing status effects only last 1/4 as long on boss mobs
-mod - shotgun 66% increased fire rate and recoil
-mod - slowly heal when below 25% health
-mod - superdeterminism spawn 4 mods, but rerolls, fields, and guns no longer spawn
-foam mod, necrophoresis now aims the foam bullets, which makes it more effective at groups
-flechettes mod, piercing needles now goes through blocks as well as mobs
-mod - spawn 3 ammo, rerolls, or heals after destroying a shield
-
+rerolls drop 60% more often
+mines delay a 1/2 second longer before they arm
+mod: supply chain - doubles your current ammo, requires mod:logistics
+mod: neocognitron - pulse auto aiming
 ************** TODO - n-gon **************
-physics question: why don't the bound states of fields spread out.  What is making them bound.
 
-mobs killed by _____ always drops ammo
-  issues getting the code to work
-
-rework reaction inhibitor to spawn mobs with 12% less life, rather then killing them at 12%
-
-levels: make a function in the main game loop that runs level specific code
-  reset the level function as each new level loads
+phase field still isn't fun
+  rework renormalization mod as well
+  does phase field need the stealth flag?
 
 mod: use the stealth flag from the phase decoherence field
   maybe trigger it along with the damage immunity CD
 
+levels: make a function in the main game loop that runs level specific code
+  reset the level function as each new level loads
+
 mod: efficient shielding (requires standing wave harmonics field)
   lowers force applied when blocking mobs (instead of flinging them away, you push them like with plasma torch), but uses less energy to block mobs
   and making it so liquid nitrogen and uranium reactor core have that effect in a radius around the player instead of on contact