diff --git a/js/level.js b/js/level.js
index d90209a..5d890f8 100644
--- a/js/level.js
+++ b/js/level.js
@@ -14,8 +14,8 @@ const level = {
   start() {
     if (level.levelsCleared === 0) {
       // level.difficultyIncrease(9)
-      // b.giveGuns("flak")
-      // mech.setField("phase decoherence field")
+      // b.giveGuns("mine")
+      // mech.setField("negative mass field")
       // b.giveMod("irradiated needles");
       // b.giveMod("reflective cavity");
 
diff --git a/js/mobs.js b/js/mobs.js
index 778f838..5b8794b 100644
--- a/js/mobs.js
+++ b/js/mobs.js
@@ -373,7 +373,7 @@ const mobs = {
           ctx.setLineDash([125 * Math.random(), 125 * Math.random()]);
           // ctx.lineDashOffset = 6*(game.cycle % 215);
           if (this.distanceToPlayer() < this.laserRange && !mech.isStealth) {
-            mech.damage(0.0003 * game.dmgScale);
+            if (mech.collisionImmuneCycle < mech.cycle) mech.damage(0.0003 * game.dmgScale);
             if (mech.energy > 0.1) mech.energy -= 0.003
             ctx.beginPath();
             ctx.moveTo(this.position.x, this.position.y);
@@ -461,7 +461,7 @@ const mobs = {
           if (!mech.isStealth) vertexCollision(this.position, look, [player]);
           // hitting player
           if (best.who === player) {
-            dmg = 0.0012 * game.dmgScale;
+            if (mech.collisionImmuneCycle < mech.cycle) dmg = 0.0012 * game.dmgScale;
             mech.damage(dmg);
             //draw damage
             ctx.fillStyle = "#f00";
diff --git a/js/player.js b/js/player.js
index 8fe6786..2c35c6a 100644
--- a/js/player.js
+++ b/js/player.js
@@ -469,6 +469,7 @@ const mech = {
       if (b.isModDeathAvoid && !b.isModDeathAvoidOnCD) { //&& Math.random() < 0.5
         b.isModDeathAvoidOnCD = true;
         mech.health += dmg //undo the damage
+        if (mech.health < 0.05) mech.health = 0.05
         mech.collisionImmuneCycle = mech.cycle + 30 //disable this.collisionImmuneCycle bonus seconds
 
         game.wipe = function () { //set wipe to have trails
@@ -1404,8 +1405,8 @@ const mech = {
               // for (let i = 0, len = mob.length; i < len; ++i) {
               //   sub = Vector.sub(mob[i].position, mech.pos);
               //   dist2 = Vector.magnitudeSquared(sub);
-              //   if (dist2 < this.fieldDrawRadius * this.fieldDrawRadius) {
-              //     const force = Vector.mult(Vector.perp(Vector.normalise(sub)), 0.002)
+              //   if (dist2 < this.fieldDrawRadius * this.fieldDrawRadius && mob[i].speed > 6) {
+              //     const force = Vector.mult(Vector.perp(Vector.normalise(sub)), 0.00004 * mob[i].speed * mob[i].mass)
               //     mob[i].force.x = force.x
               //     mob[i].force.y = force.y
               //   }
diff --git a/todo.txt b/todo.txt
index eec3523..a307547 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,8 +1,25 @@
 ************** TODO - n-gon **************
 
+mod - increase laser bot range, and reduce energy drain
+
+scale block throwing by mech.holdingMassScale
+  (and simplify the code in throw)
+
+mod - mines become a turret that fires nails
+  it could float to the mouse location on fire
+
+dash - mod  when pressing left or right on the ground, teleport to the right until you find an obstruction
+  do repeated horizontal zone queries until they hit map or block
+  up to a max range of like 10 player widths
+
+weak anthropic principle - sets health to 3% if it's lower than 3% when triggered.
+
 bug - mech.fieldShieldingScale doesn't reset when switching fields
 
 negative mass field needs a buff
+  repel blocks away
+    scale repulsion force with speed of projectile
+    choose clockwise or counter clock wise base on which force direction makes the smallest angle with the velocity
   no longer blocks, but the player takes 50% less damage from all sources while the field is active
   allow player to hold larger block, but give throwing blocks at high speed for no energy to a mob
 
@@ -49,10 +66,6 @@ gun - buff vacuum bomb
 mod - make bodies destroyable
   they drop ammo and heals
 
-mod - mines - fire something instead of needles on activation
-  foam?, flak?, vacuum bomb, super balls
-  make a different mod for each type of bullet mine can fire
-
 mod - energy recharges faster when not moving
 
 lore - a robot (the player) gains self awareness
@@ -91,7 +104,6 @@ mod - time dilation - Quantum Recovery
         put the array in the time field object
     cause the player to go back in time when the field was first activated (easier then going back to 3 seconds before)
 
-
 css transition for pause menu
 
 field that pushes everything back, and can destroy smaller blocks