I don't think that Dead Rising 2 is a horror game. Who gave you that idea? Just because a game has zombies doesn't mean it's a horror game. L4D2 for example. You don't walk down small hallways with your team-mates slowly, flinching at every corner. If you are in that same hallway then you are mowing down zombies with a chainsaw in the front, while Coach shoots the zombies that are coming to you from behind with an M16.