It’s the 1950s, and you are flying somewhere over a desert in Texas when all of a sudden, GAMMA RAYS!!! Your plane looses control and you make a crash landing somewhere in the desert only to find that the source of the gamma rays are ZOMBIES! Left with no choice, you must blast your way out of the desert through heaps of zombies that want to tear at you if they get but a whiff of you.

http://www.psp-hacks.com/forums/f141/homebrew-idol-2-zombie-desert-t239954/