The collision detection is so precise it is a saviour and also a merciless killer, which is one of the addicting things about this game. I played for the first badge, I'll come back later and try to get the rest. 5/5. Great collection of player maps. Great game.
I found enjoyment out of releasing all of the waves at the same time and earning loads of points for it. 3/5 purely for this reason. Keep working on it. :)
Decent for something that came from a shootorial, gameplay sucks a bit. Very repetitive (obv.), music bores me, movement sucks, bullets follow your players movements.. 2/5.