This was fun while it lasted and it could of if it wasn't for some random little glitch/problem.
I was in the Mall on second day (doing damn good too) till it said kill all zombies. I seem to kill them all as no more come and...I'm stuck between my two soda machines. So, I can't check if ones stuck or needs to spawn but that's were my game ended considering I could kill myself or the machines. Game kinda forgot to go to the next level or something.
So you might want to fix somethings up.