Kamen Rider OOO (Rider)

Kamen Rider OOO may refer to any the following characters.

OOO Gokaigers
In Kamen Rider x Super Sentai: Super Hero Taisen, the Gokaigers, using special Ranger Keys made from OOO's Core Medals given to them by Eiji, which allowed them to transform into the six Full Combos of Kamen Rider OOO.