GTA: Road of the Dead 2
Everything is lost in the city and most of the cops are being killed by the zombies. Two cops are trying to get away from the city as there is no hope. You control the two cops and you need to choose which one will drive. The other one will be shooting the zombies. Each one of them hold a different weapon, but he/she can't use it if he/she is driving. Drive your car as fast as possible so, you can instantly kill any zombies on the road. Shoot the zombies that clings to the car. The game will be harder and harder as you make some progress.