- Cog Mimicry/Physiology
- Gear Physiology
User with this ability either is or can transform into gear or gears of any size, shape, and material. Users' transformed form is anatomically identical to their normal form, aside of being made of gears, in which case it contains all to organs and is somewhat vulnerable to attacks. Alternately the user can transform into homogeneous matter, without any part of their form being more important than the other.
- May not return to original form.
- Kling (Pokémon)
- Klang (Pokémon)
- Klinklang (Pokémon)
- Carl/Quentin (Conker's Bad Fur Day)
- Hagurumon (Digimon)