Akaku

The Kanohi Akaku was the Mask of X-Ray Vison. The Great Akaku allowed its user to see through solid objects. The right eyes are also function as telescopes.

Tahu, Gali, Onua, Pohatu, and Lewa all found Great Akaku masks, but lost them when they became Toa Nuva.

Trivia
In the middle of the bottom of the akaku, there appears to be an upside-down version of the Mickey Mouse head, the trademark logo of disney.

Known Wearers

 * Kopaka - Great, lost when became a Toa Nuva
 * Pelagia - powerless
 * Bour - powerless
 * Aft - powerless
 * Matoro - powerless, replaced with an Iden
 * Solek - Noble, powerless