Wowza, incredibly juicy game~! The game was instantly addictive. Movement felt crispy and late-game electron repelling goes crazy. The SFX really did add to the chaos of it all and it had me hooked.
I did feel a little overwhelmed trying to understand what was going on. Took me a minute to figure out how electrons worked (haven't thought about them since middle school). Maybe slowly introducing the player to each mechanic might help? However, the tutorial elements and description you had on the page did help to puzzle things together.
Regardless, awesome stuff!