Game description: Game While style is very simple, but the overall feeling completely alone bring out a person to survive the horrors of the helpless and the monster, you need to control the protagonist with a gun stopped the waves of monsters. In survival mode, as long as the wave will enter through the upgrade set, you can buy new or upgrade the capacity of the gun. In order to make you invincible land as far as possible to the monster's head shot, and bullets are penetrating, if properly controlled, can enjoy the thrill of a continuous Headshot ... ...