Cube Dodge: Rage Game (Now with Multiplayer)

Well, I would say that the movement physics should probably be a bit tighter, but that's probably an intentional decision given the nature of the game. That being said, I always find that these sorts of games (e.g. ones designed to be ludicrously difficult) are a lot better with musics, or at LEAST sound effects of some kind.

Also, as someone who's played several games with boss battles/mini-bosses that use attacks which cause stuff to fall from the ceiling, I can't really say that this is the most original concept, even if the execution is good (though I've seen better (e.g. Freedom Planet Boss 1), I've also seen worse... coughMegaMan9JewelManMiniBosscough).

Now if only it had music...