Balancing

Super brains is so op 

ninja is op but when I’m vsing a superbrains he one shots me without going for me. 

Super Brainz is strong but what I get from this is "I can't run around killing everyone as Night Cap because Zombies have an answer for her! Nerf him so I can!"

I could about that wrong though.

Citron needs to do more damage 

He's fine honestly. He has an upgrade that gives him more damage, but otherwise he has a really, really good shield and an AoE stun.

fix aim assist, sometimes it flies across my screen other times it didn’t work at all

I turned it off because its messed up.

pea shooter (the most lame) does so much damage

I don't think Pea Shooter is lame. S/He is honestly one of the most balanced characters in my opinion.

ADD VARIENTS THATS WHAT MAKES THE GAME FUN NOT THESE * UPGRADES 

They already said 'no'. Sorry.

i kill the imp mech then it keeps shooting me, I don’t get a kill and the imp still lives. 

Imp can eject and basically immediately start shooting you. This is most likely what is happening.