Millstone

Millstones are large stone wheels that are often piloted by Gnawtys.

Millstones first appeared in the game Donkey Kong Country. They are often found in levels featuring temples, such as Millstone Mayhem and Temple Tempest. Millstones will either chase Donkey Kong and Diddy Kong through a level or act as obstacles, blocking the Kongs' path.

Millstones make a cameo in the game Mario Superstar Baseball. A discarded Millstone can be found in Donkey Kong Jungle.

Millstones make their latest appearance in Super Mario Galaxy 2. They share some similarities from their past appearances, but now take on the shape of a large stone gear with the hole filled in the center. There are also non-damage-dealing ones that rotate in the same place, forcing the player to use their rotation to scale the walls and platforms inside.