Topmaniac is a boss who initially appeared in Super Mario Galaxy for the Wii. In the video game, Mario or Luigi, depending on who you were playing as, had to spin attack the boss in order to make it smash into the electrified fences. Once either of the brothers performed this task a certain number of times, then the boss would ultimately be destroyed.

The boss, whose name is influenced by a top (which the boss looks like), will be fought a total of four times in the game (each for Mario and Luigi), each one being more challenging than the last.[1][2][3]