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
Mario vs. Donkey Kong 2: March of the Minis - Super Mario Wiki, the Mario encyclopedia
Game Over - Super Mario Wiki, the Mario encyclopedia
Boss Game 8 - Super Mario Wiki, the Mario encyclopedia
Super Mario (series) - Super Mario Wiki, the Mario encyclopedia
Yoshi - Super Mario Wiki, the Mario encyclopedia
Mushroom Mayhem - Super Mario Wiki, the Mario encyclopedia
Mario vs. Donkey Kong 2: March of the Minis, Donkey Kong Wiki
DK's Hideout - Super Mario Wiki, the Mario encyclopedia
Toadstool Castle - Super Mario Wiki, the Mario encyclopedia
Shy Guy (toy) - Super Mario Wiki, the Mario encyclopedia
Magnet Mania (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
Special Kit 1 - Super Mario Wiki, the Mario encyclopedia