Gearmo

Gearmos are robots that appear in Super Mario Galaxy and its sequel.

Appearance
Gearmos are stocky robots with a large cog in their head which pops out if Mario or Luigi jump on top of them. They have been seen moving without the cog which indicates that the cog serves no real purpose. They have pincers, wheels instead of legs and they vary in colour.

Powers and Abilities
Gearmos have the ability to rotate their head, clockwise.

Gearmos also have super strength as they are able to destroy a Chomp with their bare hands.

Reproduction
It is unknown how they reproduce but it is known that they have separate genders, as when Mario does not collect enough purple coins a Gearmo refers to herself as "this old iron lady", despite them being robots.

Society
Gearmos often appear maintaining other galaxies.

Diet
According to some Gearmos, they find purple coins delicious.