Respect, man :)
Cool game, I really enjoyed it :)
Just a few things:
1) There's a bug about reloading the gun... Makes it hard to fire continuously, even when you improve the fire speed.
2) The waves are a little short, and stop right before the game becomes really tough... Make them longer!
3) That's all... Maybe you can expand the game by adding more enemies and more levels... Good Luck!
BTW cool game :)
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