vaccum bomb grenade mod

gun: vacuum bomb is removed
mod: vacuum bomb - grenades fire slower, explode bigger and, suck everything towards them

laser and diffuse laser graphics are better
mod: output coupler - diffuse laser beam is 30% wider and does 30% more damage
      requires diffuse beam

level number doesn't increase if you skip the boss (in the late game)

js/mob.js

@@ -1104,7 +1104,7 @@ const mobs = {
       //replace dead mob with a regular body
       replace(i) {
         //if there are too many bodies don't turn into blocks to help performance
-        if (this.leaveBody && body.length < 60 && this.mass < 200) {
+        if (this.leaveBody && body.length < 60 && this.mass < 200 && this.radius > 18) {
           const len = body.length;
           const v = Matter.Vertices.hull(Matter.Vertices.clockwiseSort(this.vertices)) //might help with vertex collision issue, not sure
           body[len] = Matter.Bodies.fromVertices(this.position.x, this.position.y, v);