Really cool and unique idea! But damn, that a really hard game.
Trying to control 2 ships at the same time, whilst avoiding enemy "fire", AND trying not to crash the ships makes the game really hectic to play :D Also the ship movement is maybe a bit too fast. (but just a bit).
Maybe introduce easier mode, where the ships don't collide with each other? I think that would make it much more enjoyable in itself. (and maybe I could get past the second level lol...)
Other than that, really cool arcady - game you managed to make in this short time. Good job!