Mega-Mania expands Block Mania, the game of manic destruction in Mega-City One, allowing up to four players to join in the chaos at once. For the first time the Happy Hour expansion is also included to take the violence and destruction to new heights, adding the Jaeger Squad, Robo-Dogs, Sucker Guns, and Trip Mines to the fray. This expansion includes two new game boards, each depicting an entire Mega-City block, a clear and concise rules sheet explaining how to play Block Mania with three or four players, three new counter sheets, representing the inhabitants of the new blocks and their weaponry, as well as new units introduced by Happy Hour.