Really cool concept. I went into the game thinking it was a 3d Missile defense kinda thing, but there aren't any guns. That simplicity of concept makes that game rather refreshing and difficult. Only complaint that I have is that the mouse controls seem to be a bit sensitive, the rotations occur faster than i expect. Perhaps rotations should occur on a ramp, so they start slow and ramp up speed to a limit. I don't think they should slow down to a stop though, the stop should be sudden when the player releases the button.