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Use WASD to move in Boxhead The Nightmare game, control the mouse to aim and shoot zombies, 1-5 to switch the weapons.
There are many battlefields and characters in the amazing Boxhead The Nightmare unblocked game. And all of them need to be unlocked. Choose the available fight and start to show the shooting skill to destroy every enemy. All right! Let’s join in Boxhead The Nightmare, open the road 666 and defend first! At all costs, you have to stop the zombies before they attack your base and eat you. Don’t forget to pick up items and upgrade the power! See if how long you can finish!