Akaku

The Akaku is the Kanohi Mask of X-Ray Vison. The Great Akaku allowed its user to see through solid walls and in a kind of thermal vision. On Metru Nui, it was formed by combining a Weaken and Teleport Kanoka together. Kopaka, Matoro, Aft, Bour, and Pelagia wore Akaku in their lifetimes.