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
Mario vs. Donkey Kong 2: March of the Minis - Full Game Walkthrough (All Gold Stars)
Boss Game 3 - Super Mario Wiki, the Mario encyclopedia
Boss Game 8 - Super Mario Wiki, the Mario encyclopedia
Rooftop (Mario vs. Donkey Kong: Minis March Again!) - Super Mario Wiki, the Mario encyclopedia
Super Mario (series) - Super Mario Wiki, the Mario encyclopedia
winstein's art that are drawn by him, take a look if you want, Page 2
Barbell - Super Mario Wiki, the Mario encyclopedia
Mario vs. Donkey Kong - Super Mario Wiki, the Mario encyclopedia
Super Mario Galaxy, Nintendo
Magnet Mania (Mario vs. Donkey Kong 2: March of the Minis) - Super Mario Wiki, the Mario encyclopedia
Polterguy - Super Mario Wiki, the Mario encyclopedia
Magnet Mania (Mario vs. Donkey Kong 2: March of the Minis) - Super Mario Wiki, the Mario encyclopedia
Toad - Super Mario Wiki, the Mario encyclopedia
Super Mario RPG (Nintendo Switch) - Super Mario Wiki, the Mario encyclopedia
Circus Kong - Super Mario Wiki, the Mario encyclopedia