If you play this game, you will enter an entire new realm of frustration! This game is really the epitome of a designer thinking that frustrating is fun. 1/5.
The mechanics of this game deserve a straight 5/5. But, I give it a 4 of five, due to three complaints: You can't replay the levels you unlock, you have to start a new game; you can be killed effectively after the round is over, and the weapons seem rather underpowered. I didn't feel, at any point in the game, that I could decimate a wave; this is a pleasing element of any arcade style game.
This is the most amazing game I have ever played! The tremendous visuals, amazing audioeffects, and excellent grammar all caught my attention right off the bat..... Wait, wrong game. Sorry. 1/5