Average and not worth $10
Played it for about 40 minutes and didn't finish the first level because it got so boring and I'm pretty sure I lost all my progress and there's no way I'm doing it again. Fail design.
Dull sound effects, enemies take heaps of damage, grenades wouldn't throw no matter what key I set it to, game pad controls didn't work properly, stiff animations, you can change weapons while in the pause menu, the menus suck balls and the graphics are nothing amazing.
I'm pretty sure this is made by the devs of Dead Horde which was super lame and it appears that they sadly haven't learnt much.
Save your money and buy another game. 3/10
EDIT: I posted this mini-review on the facebook page last night to warn people and it's now deleted haha