diff --git a/js/bullet.js b/js/bullet.js
index 0721575..b589d9f 100644
--- a/js/bullet.js
+++ b/js/bullet.js
@@ -2863,8 +2863,8 @@ const b = {
             have: false,
             fire() {
                 if (mod.isCapacitor) {
-                    if (mech.energy > 0.16) {
-                        mech.energy -= 0.16
+                    if (mech.energy > 0.16 || mod.isRailEnergyGain) {
+                        mech.energy += 0.16 * (mod.isRailEnergyGain ? 1 : -1)
                         mech.fireCDcycle = mech.cycle + Math.floor(30 * b.fireCD);
                         const me = bullet.length;
                         bullet[me] = Bodies.rectangle(mech.pos.x + 50 * Math.cos(mech.angle), mech.pos.y + 50 * Math.sin(mech.angle), 60, 14, {
@@ -3077,17 +3077,11 @@ const b = {
                             const previousCharge = this.charge
                             let smoothRate = 0.98 * (mech.crouch ? 0.99 : 1) * (0.98 + 0.02 * b.fireCD) //small b.fireCD = faster shots, b.fireCD=1 = normal shot,  big b.fireCD = slower chot
                             this.charge = this.charge * smoothRate + 1 * (1 - smoothRate)
-
-                            // let chargeRate = (mech.crouch) ? 0.98 : 0.984
-                            // chargeRate *= Math.pow(b.fireCD, 0.03)
-                            // this.charge = this.charge * chargeRate + (1 - chargeRate) // this.charge converges to 1
                             if (mod.isRailEnergyGain) {
-                                mech.energy += (this.charge - previousCharge) * 1.66 //energy drain is proportional to charge gained, but doesn't stop normal mech.fieldRegen
+                                mech.energy += (this.charge - previousCharge) * 2 //energy drain is proportional to charge gained, but doesn't stop normal mech.fieldRegen
                             } else {
                                 mech.energy -= (this.charge - previousCharge) * 0.33 //energy drain is proportional to charge gained, but doesn't stop normal mech.fieldRegen
                             }
-
-
                             //draw targeting
                             let best;
                             let range = 3000
diff --git a/js/level.js b/js/level.js
index b236734..fea2ca9 100644
--- a/js/level.js
+++ b/js/level.js
@@ -17,8 +17,8 @@ const level = {
             // game.zoomScale = 1000;
             // game.setZoom();
             // mech.setField("wormhole")
-            b.giveGuns("mine")
-            mod.giveMod("sentry")
+            // b.giveGuns("mine")
+            // mod.giveMod("sentry")
 
 
             level.intro(); //starting level
diff --git a/js/mob.js b/js/mob.js
index d163692..bf15769 100644
--- a/js/mob.js
+++ b/js/mob.js
@@ -1061,7 +1061,7 @@ const mobs = {
                         powerUps.spawn(this.position.x, this.position.y, type);
                     }
                 }
-                if (true) {
+                if (mod.isRadioactive) {
                     //look for dots and spread them
                     let dmgTotal = 0
                     for (let i = 0, len = this.status.length; i < len; i++) {
@@ -1077,7 +1077,15 @@ const mobs = {
                                 closestIndex = i
                             }
                         }
-                        if (closestIndex) mobs.statusDoT(mob[closestIndex], dmgTotal / 180, 180)
+                        if (closestIndex) {
+                            mobs.statusDoT(mob[closestIndex], dmgTotal / 180, 180)
+                            ctx.beginPath();
+                            ctx.moveTo(this.position.x, this.position.y);
+                            ctx.lineTo(mob[closestIndex].position.x, mob[closestIndex].position.y);
+                            ctx.lineWidth = this.radius;
+                            ctx.strokeStyle = "rgba(0,80,80,1)";
+                            ctx.stroke();
+                        }
                         //draw AOE
                         // game.drawList.push({ //add dmg to draw queue
                         //     x: this.position.x,
diff --git a/js/mods.js b/js/mods.js
index a3e7088..6d18290 100644
--- a/js/mods.js
+++ b/js/mods.js
@@ -2402,9 +2402,9 @@ const mod = {
             maxCount: 1,
             count: 0,
             allowed() {
-                return mod.haveGunCheck("rail gun") && !mod.isCapacitor
+                return mod.haveGunCheck("rail gun")
             },
-            requires: "rail gun, not capacitor bank",
+            requires: "rail gun",
             effect() {
                 mod.isRailEnergyGain = true;
             },
@@ -2418,9 +2418,9 @@ const mod = {
             maxCount: 1,
             count: 0,
             allowed() {
-                return mod.haveGunCheck("rail gun") && !mod.isRailEnergyGain
+                return mod.haveGunCheck("rail gun")
             },
-            requires: "rail gun, not half-wave rectifier",
+            requires: "rail gun",
             effect() {
                 mod.isCapacitor = true;
             },
diff --git a/todo.txt b/todo.txt
index 71a45f1..e5798f6 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,14 +1,6 @@
 *********** NEXT PATCH ***********
 
-mini black hole mobs travel through walls
 
-mod: radioactive contamination - after a mob or shield dies, leftover radiation spreads to a nearby mob
-
-mod: half-wave rectifier - railgun overfills with energy when you charge instead of draining
-   removed rail gun mod - frame dragging
-bug fixed - rail gun bugs out when your charge speed gets very low
-
-mod: sentry - mines are modified to automatically fire nails at nearby targets for 12 seconds
 
 ************** BUGS **************