The inertia on the player is a bit too much, it means all I can do is circle strafe to dodge. I want to be able to wiggle back and forth to dodge, at least until the grenade guy finds me. More feedback when hitting enemies and getting hit would be great. I can't see the grenades the grenade guys throw, they blend in too much.
The juice you have now is good and the disco lights are cool. A sickass soundtrack would make this game pretty rad.