Play the role of the special agent and take out the zombies cursing the villages. Hide behind a barricade and attack the incoming waves of zombies to finish them off. Use the mouse to aim and left click to fire toward the zombies. Kill as many as you can to reach the required level. You can also recruit other survivors by spending some points. Also place several traps like the bear trap, grenade trap, the dynamite and the fire trap. Switch between weapons by using 1-6 numeric keys and try to aim at the head for an instant kill. The more zombies you kill, the more will be your high score.