I really like the game!
there are a few things that could be better though. I think that you need a different physics engine for starters, the bullets shouldn't arc so much, also you could add a whole other mode where you use crossbows, longbows, cannons, and other misc weapons. that would be really cool. these are just suggestions though. overall i give it a 9 i didn't give it a ten only because of the physics engine. keep up the good work!