Girl vs Zombies stars you as the titular girl, trying to escape from a city after the dead rise from their graves. Along the way you’ll encounter hundreds of the rotting dead and other horrors. features a good number of distinct playstyles, imaginative enemies, great graphics and tense music.

In this game, there are over 10 unique gameplay modes, including a
special "survival" mode.

Game Back Story:
A beautiful girl is besieged by hordes of zombies in an infected city.
You must help her survive by guiding her through various challenges
and eventually escape!

Features:
* Over 10 challenging game-play modes in 1 game.
* 14 levels
* SURVIVAL mode unlocked after the first 3 levels.
* Game Center is fully supported

Source: http://itunes.apple.com/us/app/girl-vs-zombies/id407494875?mt=8