Call of Duty: World at War: Zombies I and II for iPhone and iPod Touch is now available for a limited time for only $7.99. Additionally, Zombies HD for the iPad is now available for $9.99.
No longer limited to wandering the rooms of an abandoned building, the zombies of the Verrückt zombie asylum add-on pack for iPhone's Call of Duty: World at War: Zombies are trying to break their way into the halls of an insane asylum.
Treyarch wasn't really interested in the business of making cell phone games, at least not before the iPhone.
Nacht Der Untoten was a surprisingly fun little addition added on to the end of the otherwise realistic and slightly unsettling Call of Duty: World At War.