this game is the best of unity 3d, really. But i think that you can improve the game putting coverage options, as now poking his head.
you could also put more options to get GP because it is very difficult. and ultimately, levels of 30-59 are very disproportionate, fix this please, but seriously except that, the game is very entertaining.
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 "Contract Wars"){kind=icon}
 "Pixel Warfare"){kind=icon}