The roof is the final floor in the main adventure of Mario vs. Donkey Kong 2: March of the Minis, where Mario and the Mini Marios engage in a battle against Donkey Kong on the rooftop of Super Mini Mario World, in a level referred to as Final Boss
Boss Game 5 - Super Mario Wiki, the Mario encyclopedia
Cool Kong - Super Mario Wiki, the Mario encyclopedia
Room 7-8 - Super Mario Wiki, the Mario encyclopedia
Bowser, MarioWiki
Boss Game 6 - Super Mario Wiki, the Mario encyclopedia
Mario vs. Donkey Kong 2: March of the Minis - Super Mario Wiki, the Mario encyclopedia
Mario vs. Donkey Kong 2: March of the Minis - Super Mario Wiki, the Mario encyclopedia
Shy Guy Smash! - Super Mario Wiki, the Mario encyclopedia
Mini Toad - Super Mario Wiki, the Mario encyclopedia
Mario vs. Donkey Kong 2: March of the Minis - Nintendo DS, Nintendo DS
Waluigi - Super Mario Wiki, the Mario encyclopedia
Boss Game 3 - Super Mario Wiki, the Mario encyclopedia
Room 1-8 - Super Mario Wiki, the Mario encyclopedia
Game Over - Super Mario Wiki, the Mario encyclopedia