Mass Mayhem Zombie Expansion online flash game is an action game that's very fun and engaging. As most action games Mass Mayhem Zombie Expansion takes a bit of practice to get a hang of it and requires a little bit of skill. Use your mouse and keyboard to play Mass Mayhem Zombie Expansion, you will be given detailed instructions and a tutorial in game.

The game is fun for all family to play, and it's a great fun little thing to play when you have some time to kill at home or office. Mass Mayhem Zombie Expansion features nice modern flash graphics and animation effects as well as sound effects and a cool sound track. You can turn the sound off in the game, but it will be on by default so keep that in mind and adjust your speakers accordingly.

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.

To start playing click the "Play Now" button bellow! Enjoy!