And the expansion comes bloodiest Mass Mayhem series. Kill waves and waves of zombies with your favorite weapon or using this robot murderer. Both weapons and your robot can be updated. New Expansion! Where you can use a Robot to end metch wave after wave of zombies. Never before have you enjoyed most kicking undead. Arrow keys to move and jump or guide rockets. Spacebar to fire or use weapons. 1 to 10 to select weapons X key to use vehicle or robot and open crates.
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