Mass Mayhem Zombie Expansion

This bloody expansion to the Mass Mayhem series introduces a kick-ass robot mech! Now you can kill waves and waves of zombies with your favourite weapon or use this killer robot. Both weapons and your robot can be upgraded.

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Instructions: 

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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