This article is about a/an transformation belt in Kamen Rider OOO.
Ozu doraiba

OOO Driver

"(3 Core Medals): (phrase/music)"
―Transformation announcement via O Scanner[src]

"Scanning Charge!"
―Finisher announcement via O Scanner[src]

The OOO Driver (オーズドライバー Ōzu Doraibā) is a belt that gives Eiji Hino the ability to become Kamen Rider OOO, originally the seal that kept the Greeed in their 800-year slumber. To transform into OOO, Eiji inserts three Core Medals into the O Slater (オースレイター Ō Sureitā), turns the O Slater on the Force Drive (フォースドライブ Fōsu Doraibu), scans the Core Medals with the O Scanner, and then holds the O Scanner up to his chest.[1] According to Ankh, because it was Eiji who undid the seal on the OOO Driver itself, it will only work on him and no one else. However, someone else can perform the physical action of scanning Medals for Eiji as long as he is wearing the OOO Driver. The reason the seal broke was because of Eiji's lack of desire, which made him perfect to become OOO.

The OOO Driver can also be duplicated. All the clones of OOO Gatakiriba created by the Combo's Branch Shade ability sport working OOO Drivers, which allowed a group of eight OOOs to transform into each of his combos, Gatakiriba, Latorartar, Sagohzo, Shauta, Tajadol, Putotyra, and Burakawani, after being given Core Medals by the Greeed. Kamen Rider OOO Wonderful: The Shogun and the 21 Core Medals The Gokaigers also sported OOO Drivers when they transformed into OOO's Combos, Tajadol, Shauta, Latorartar, Gatakiriba, Putotyra, and Sagohzo, via Ranger KeysIcon-crosswiki created from Core Medals given to them by Eiji. Kamen Rider × Super Sentai: Super Hero Taisen

Hexa OOO Driver

Hexa OOO Driver

An S.I.C.-exclusive variant with 6 Medal slots used by Boss to become OOOOOO (Hexa OOO) using the Core Medals for Shocker, Gel-Shocker, Destron, G.O.D., the Garanda Empire, and Delza. Kamen Rider OOO: OOZ

Behind the scenes


During the airing of Kamen Rider OOO, Ganbaride arcade systems included an OOO Driver interface for the toy Core Medals.


  • The sound effect that the OOO Driver used when the O Slater is adjusted, reuses the sound from the Drag Visor.
  • The OOO Driver is also donned by Hitomi Isaka of Kamen Rider Girls, who represents OOO in the group.