diff --git a/js/bullets.js b/js/bullets.js
index edc037c..f32d5d7 100644
--- a/js/bullets.js
+++ b/js/bullets.js
@@ -57,13 +57,14 @@ const b = {
   isModFlechetteMultiShot: null,
   isModMineAmmoBack: null,
   isModRailNails: null,
+  isModHawking: null,
   modOnHealthChange() { //used with acid mod
     if (b.isModAcidDmg && mech.health > 0.8) {
       game.playerDmgColor = "rgba(0,80,80,0.9)"
-      b.modAcidDmg = 0.9
+      b.modAcidDmg = 1.5
     } else {
       game.playerDmgColor = "rgba(0,0,0,0.7)"
-      b.modAcidDmg = 0
+      b.modAcidDmg = 1
     }
   },
   mods: [{
@@ -1014,6 +1015,22 @@ const b = {
         b.isModSporeField = false;
       }
     },
+    {
+      name: "hawking radiation",
+      description: "<strong>negative mass field</strong> releases virtual particles that<br><strong class='color-d'>damage</strong> mobs within range",
+      maxCount: 1,
+      count: 0,
+      allowed() {
+        return mech.fieldUpgrades[mech.fieldMode].name === "negative mass field"
+      },
+      requires: "negative mass field",
+      effect() {
+        b.isModHawking = true;
+      },
+      remove() {
+        b.isModHawking = false;
+      }
+    },
   ],
   removeMod(index) {
     b.mods[index].remove();
diff --git a/js/engine.js b/js/engine.js
index 1a67019..9e0e76d 100644
--- a/js/engine.js
+++ b/js/engine.js
@@ -178,6 +178,7 @@ function collisionChecks(event) {
           if (obj.classType === "bullet" && obj.speed > obj.minDmgSpeed) {
             // const dmg = b.dmgScale * (obj.dmg + 0.15 * obj.mass * Vector.magnitude(Vector.sub(mob[k].velocity, obj.velocity)));
             let dmg = b.dmgScale * (obj.dmg + b.modAcidDmg + 0.15 * obj.mass * Vector.magnitude(Vector.sub(mob[k].velocity, obj.velocity)))
+            // console.log(obj.dmg / (0.15 * obj.mass * Vector.magnitude(Vector.sub(mob[k].velocity, obj.velocity))))
             if (b.isModCrit && !mob[k].seePlayer.recall && !mob[k].shield) dmg *= 5
             mob[k].foundPlayer();
             mob[k].damage(dmg);
@@ -195,7 +196,7 @@ function collisionChecks(event) {
           if (obj.classType === "body" && obj.speed > 5) {
             const v = Vector.magnitude(Vector.sub(mob[k].velocity, obj.velocity));
             if (v > 8) {
-              let dmg = b.dmgScale * (b.modAcidDmg + v * Math.sqrt(obj.mass) * 0.07);
+              let dmg = b.dmgScale * (v * Math.sqrt(obj.mass) * 0.07);
               mob[k].damage(dmg, true);
               if (mob[k].distanceToPlayer2() < 1000000) mob[k].foundPlayer();
               game.drawList.push({
diff --git a/js/player.js b/js/player.js
index 705788a..ebae8a3 100644
--- a/js/player.js
+++ b/js/player.js
@@ -1442,6 +1442,15 @@ const mech = {
               ctx.globalCompositeOperation = "difference";
               ctx.fill();
               ctx.globalCompositeOperation = "source-over";
+
+              if (b.isModHawking) {
+                for (let i = 0, len = mob.length; i < len; i++) {
+                  if (Vector.magnitude(Vector.sub(mob[i].position, mech.pos)) < this.fieldDrawRadius) {
+
+                  }
+                }
+              }
+
             } else {
               //trigger cool down
               mech.fieldCDcycle = mech.cycle + 120;
diff --git a/todo.txt b/todo.txt
index 70025f1..aa10058 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,5 +1,7 @@
 ************** TODO - n-gon **************
 
+mod - negative mass field does damage to mobs in zone
+
 mod - flechettes mod for poison damage
   other flechettes multi-shot is disabled
 mod - flechettes are guided towards targets
@@ -13,10 +15,6 @@ gun - buff vacuum bomb
   mod - double explosions?
   mod - doesn't suck player in?
   
-mod - negative mass field does damage to mobs in zone
-
-mod - rail gun burst on impact into nails
-
 mod - make bodies destroyable
   they drop ammo and heals