Solid effort
I loved the game, and the concept, as i am a fan of this style, however there are too many complaints in its actuality to let the concept stand alone.
Zombies that are at the bottom of your screen are un-hittable once they reach your wall and you cant aim down
The aiming is off as many people said, but then again this isnt hard to correct for and sortof made the game more challangingly fun, so i dont know if it was intentional.
The game feels too short, or maybe the levelign and cash is too hard. i unlocked a new item the level i beat the game, and will never know what it is. which makes me sad.