Zombies are readying for an attack! They are marching towards your base and your task is not to let them pass through the gates. Your hero will be running around the location and shooting down the walking dead. You can also use various boosters located on the bottom panel once they become active. From time to time, there will be ammo and gun boxes falling down from the sky on parachutes. Don’t miss them to enhance your defense! If you manage to survive through ten waves of attacks, the monsters won’t be able to defeat you!