Dr. Wily asked for the help of Bowser! Play the role of Mega Man and defeat the two bosses in this fun ROM hack - Mega Man in the Mushroom Kingdom! Mega Man in the Mushroom Kingdom is an action-platformer video game that was released back in 2006. The game is a ROM hack of the popular Mega Man game for the Nintendo Entertainment System (NES), and features the gameplay of Mega Man with the maps, enemies, and elements of Super Mario Bros. The game features the maps and enemies of Super Mario Bros. 1, 2, 3 and World.