Needs a sequel!
This game really needs a sequel. I'd suggest making something where you can actually select which areas of the city you want to search, with like, a map or something. You could put a mall in there, with some guns, some houses where you can find some improvised weapons, and a military base where you have a low probability (due to fences and things complicating entrance) of finding even better weapons. Better still, you could keep track of where high concentrations of zombies are, so as to avoid them in your searches. The game itself is absolutely amazing. After several years wandering around newgrounds, THIS game was what convinced me to sign up, just so I can say how awesome it is.