diff --git a/js/game.js b/js/game.js
index 7b1c6b0..aa82260 100644
--- a/js/game.js
+++ b/js/game.js
@@ -842,6 +842,10 @@ const game = {
   },
   checks() {
     if (!(mech.cycle % 60)) { //once a second
+
+      //every second energy above max energy loses 25%
+      if (mech.energy > mech.maxEnergy) mech.energy = 1 + (mech.maxEnergy - mech.energy) * 0.75
+
       if (mech.pos.y > game.fallHeight) { // if 4000px deep
         if (game.difficultyMode > 2) {
           mech.death();
diff --git a/js/level.js b/js/level.js
index 7206aa8..60bd594 100644
--- a/js/level.js
+++ b/js/level.js
@@ -10,7 +10,7 @@ const level = {
   levels: ["skyscrapers", "rooftops", "warehouse", "highrise", "office", "aerie", "satellite", "sewers", "testChamber"],
   start() {
     if (level.levelsCleared === 0) { //this code only runs on the first level
-      // level.difficultyIncrease(8)
+      level.difficultyIncrease(8)
       // game.enableConstructMode() //used to build maps in testing mode
       // game.zoomScale = 1000;
       // game.setZoom();
@@ -20,7 +20,7 @@ const level = {
       // for (let i = 0; i < 10; i++) {
       // mod.giveMod("laser-bot");
       // }
-      // mod.giveMod("orbit-bot upgrade")
+      // mod.giveMod("eddy current brake")
 
 
       level.intro(); //starting level
diff --git a/js/mods.js b/js/mods.js
index 470f51b..1143333 100644
--- a/js/mods.js
+++ b/js/mods.js
@@ -1440,9 +1440,9 @@ const mod = {
             maxCount: 1,
             count: 0,
             allowed() {
-                return !mod.isSuperDeterminism && !mod.isRerollHaste
+                return powerUps.reroll.rerolls < 3 && !mod.isSuperDeterminism && !mod.isRerollHaste
             },
-            requires: "not superdeterminism or Ψ(t) collapse",
+            requires: "not superdeterminism or Ψ(t) collapse<br>fewer than 3 rerolls",
             effect: () => {
                 mod.manyWorlds = true;
             },
@@ -1456,9 +1456,9 @@ const mod = {
             maxCount: 1,
             count: 0,
             allowed() {
-                return !mod.isSuperDeterminism && !mod.isRerollHaste
+                return (powerUps.reroll.rerolls > 1 || build.isCustomSelection) && !mod.isSuperDeterminism && !mod.isRerollHaste
             },
-            requires: "not superdeterminism or Ψ(t) collapse",
+            requires: "not superdeterminism or Ψ(t) collapse<br>at least 2 rerolls",
             effect() {
                 mod.renormalization = true;
             },
@@ -2470,6 +2470,22 @@ const mod = {
                 mod.isStunField = 0;
             }
         },
+        {
+            name: "eddy current brake",
+            description: "you are <strong>surrounded</strong> by a field that<br>limits the <strong>top speed</strong> of mobs",
+            maxCount: 1,
+            count: 0,
+            allowed() {
+                return mech.fieldUpgrades[mech.fieldMode].name === "perfect diamagnetism"
+            },
+            requires: "perfect diamagnetism",
+            effect() {
+                mod.isPerfectBrake = true;
+            },
+            remove() {
+                mod.isPerfectBrake = false;
+            }
+        },
         {
             name: "fracture analysis",
             description: "bullet impacts do <strong>400%</strong> <strong class='color-d'>damage</strong><br>to <strong>stunned</strong> mobs",
@@ -3006,5 +3022,6 @@ const mod = {
     isNoFireDamage: null,
     duplicateChance: null,
     beamSplitter: null,
-    iceEnergy: null
+    iceEnergy: null,
+    isPerfectBrake: null
 }
\ No newline at end of file
diff --git a/js/player.js b/js/player.js
index 7e50818..96c2d62 100644
--- a/js/player.js
+++ b/js/player.js
@@ -1303,20 +1303,6 @@ const mech = {
         // mech.fieldArc = 0.3; //run calculateFieldThreshold after setting fieldArc, used for powerUp grab and mobPush with lookingAt(mob)
         // mech.calculateFieldThreshold();
         mech.hold = function () {
-
-          //cap mob speed based on distance
-          for (let i = 0; i < mob.length; i++) {
-            const distance = Vector.magnitude(Vector.sub(mech.pos, mob[i].position))
-            const range = 1000
-            if (distance < range) {
-              const cap = Math.max(0.01 * distance, 4)
-              if (mob[i].speed > cap) {
-                Matter.Body.setVelocity(mob[i], Vector.mult(Vector.normalise(mob[i].velocity), cap)); //set velocity to cap, but keep the direction
-              }
-            }
-          }
-
-
           const wave = Math.sin(mech.cycle * 0.022);
           mech.fieldRange = 170 + 12 * wave
           mech.fieldArc = 0.33 + 0.045 * wave //run calculateFieldThreshold after setting fieldArc, used for powerUp grab and mobPush with lookingAt(mob)
@@ -1361,6 +1347,23 @@ 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)
           }
           mech.drawFieldMeter()
+
+          if (mod.isPerfectBrake) { //cap mob speed around player
+            const range = 400 + 120 * wave
+            for (let i = 0; i < mob.length; i++) {
+              const distance = Vector.magnitude(Vector.sub(mech.pos, mob[i].position))
+              if (distance < range) {
+                const cap = mob[i].isShielded ? 7 : 3.5
+                if (mob[i].speed > cap && Vector.dot(mob[i].velocity, Vector.sub(mech.pos, mob[i].position)) > 0) { // if velocity is directed towards player
+                  Matter.Body.setVelocity(mob[i], Vector.mult(Vector.normalise(mob[i].velocity), cap)); //set velocity to cap, but keep the direction
+                }
+              }
+            }
+            ctx.beginPath();
+            ctx.arc(mech.pos.x, mech.pos.y, range, 0, 2 * Math.PI);
+            ctx.fillStyle = "hsla(200,50%,61%,0.08)";
+            ctx.fill();
+          }
         }
       }
     },
diff --git a/todo.txt b/todo.txt
index 77ba18d..40f25b6 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,11 +1,7 @@
-laser bots now use the same laser code as the player
-mod: thermoelectric effect - ice IX bullets give you 7% energy after they collides with mobs
+mod perfect diamagnetism: eddy current brake - mobs have a speed limit when they are near you
 
 ************** TODO - n-gon **************
 
-a gun that gives back energy
-  if your energy is below 90% your drones stay near you and give energy regen
-
 buff neutron bomb?
   less fire CD?