Yeah srsly the replayability is amazing, you inspired me to add alot more player feedback in my game(s), I love how you have the hit change the character's color for a split second, I love the cooldown effect at the bottom for the shooting. One tidbit from me would be to not have the orbs spawn in a place where an orb already is. Overall awesome!

Multiplayer is hard to do.  I liked the pixel art a lot.  The game was really fun to play - I could have kept playing it for hours.