This is a fun little game that can get addictive. It a simple driving game where you have to see how far you can drive while zombies are trying to jump on and knock over your vehicle. You can use other crashed cars to knock the zombies off as long as you don't crash, or you can tap the screen to shoot out the window closest to the zombies. You can get weapon upgrades as you get further, and there are some different levels to try. You steer the vehicle by tilting your device, like other racing games. It has pretty responsive steering if you need to swerve. Overall for a free app this one is pretty good and worth getting.