Great game, and almost perfect
This game was beautifully done, from the backgrounds to the weapons. Burning zombies to death (again?) never got old, and the cutscenes were really fun. But, as others have done, I quit after the first 10 waves or so thinking that the game had no real ending.
In fact, for a little bit, I thought this was a conscious (yet boring) choice on your part. Maybe you thought about what happen if he DID make it outside...
How could a zombie live a normal life in the real world? Will he try to find a nice wife and settle down to raise 2.1 undead children in a suburb somewhere? As a felon, it'd be tough for him to find a steady job, so undoubtedly he'd turn to drug-dealing or pimping. Maybe he could be a bouncer.
But these questions seem irrelevant, since you DID make an ending, buried somewhere under 20 waves of increasingly boring levels.
But everything else was really well done, and this is easily one of the best zombie-survival games I've played on newgrounds.