Here come the zombies and they want only one thing...you. At the beginning of the game you will start out with only a handgun and your wits, but as you kill more zombies your options increase. There are many places to buy items, like a dog with a gun mounted on him and other helpful items to survive the multiple levels of zombies hoards. The keyboard functions that are primary used are the WASD method of moving while the mouse is used to point and shoot. There is an option in the game to use an automatic method that only utilizes the mouse if you choose.