Mayhem 2: Rise of the Bunnies, similarly to the previous Mayhem game, is an arena platform shooter where you have to kill an invading army off killer bunnies.
An endless amount of bunnies well in through portals, and you have a handful of weapons at your disposal to kill them with such as a shotgun, flamethrower, Uzi, rocket launcher and the futuristic 'Red Dwarf' plasma gun. Letting the bunnies touch you take away health points or shield power, and when you run out it is game over. Killed bunnies drop money that can be used to buy ammo for your weapons or extra shield power, as well as give you some extra points. Reaching specific milestone high scores unlocks new levels, game modes and even cheat codes.
The Special Edition update adds an intro cinematic and an extra level taken from the first Mayhem.