hey, thas a nice game, it's very fun and dynamic game, the mechanics are really good. one suggestion, try make your own sprites, this will differentiate your game from others.
ps: If you not know make sprites, try to talk to someone who knows.
hey, I just want to say thanks for the sprites, it's really good and if I could I would give to you some money, but not everyone has money left over. Well keep it up you are a realy good artist.