Oooh, this one's a toughie...
Well, this is definitely one of the toughest games I come across to judge in the Rock Out collection.
So, for starters, I definitely give you props for style. The space setting is very atmospheric given the music, and the game itself is pretty interesting. Plus, this is one of only a few games I've played where the action syncs perfectly with the music.
That being said, my primary complaint is one I mentioned for another game in the Rock Out collection; there seems to be no point. There's no reason to get better, no reason to play past one time. Still, I commend your efforts.