Twin Caliber (PlayStation 2)

Twin Caliber is a co-op third person rail shooter for two players. One plays a police sheriff and the other a hardened criminal. They must band together to unravel a dark mystery around a graveyard full of zombies. Both characters can hold two guns. Each gun is aimed with one of the analog sticks. Points are awarded for killing enemies, particularly multiple at a time from different angles. The game comes with 26 levels, nine level and a handful of different enemies, including zombies, demons, slugs and cultists.