Topmen are enemies that debut Super Mario Galaxy. They first appear in the Battlerock Galaxy. To attack, Topmen use their spin to knock their opponent into dangerous objects around them. Mario can beat these enemies at their own game by using his star spin to send them into deadly hazards, damaging the creatures. When it takes enough electrical damage from being tossed into a power line by Mario, a Topman dies and goes into meltdown, leaving a Coin among its remains.
Topmen debut in this game. They can be found at Battlerock Galaxy, Buoy Base Galaxy, and the Dreadnought Galaxy in Super Mario Galaxy. They are prominent in the Battle Rock Galaxy's third mission, Topmaniac and the Topman Tribe, and in the Dreadnought Galaxy's third mission, Revenge of the Topman Tribe.
- Their weakness is similar to the Mega Titan from Kirby and the Amazing Mirror.
- Topmans also appeared in a temporary online event in Mario Kart Wii, the goal is simple, push all the Topmans to make them fall off the arena (which is called Galaxy Arena), More Topmans appear each waves, nowadays this event isn't accessible without using Wiimfi's competition pack (in other words, hacking your Wii).
- They were inspired by Twister from the Kirby series.