Very addicting little game, it would be cool if you could aim, but then maybe that would break the game. if you made an iphone port with different modes or something you could probably really profit from it. I honestly think this is something to think about. the only thing you would have to do is expand on it a little more (not sure how you would do that but hey you made the game so you could figure something out) and release this as like a free version or something without leaderboards. Oh you know what maybe you could make different types of ships that shoot out in different patterns! That would be interesting... Anyways that's my two cents.