The Kanohi Begasu is the Mask of Rahi Control. It allows the user to gain absolute control over most any and all living Rahi in the surrounding area, although insectoid Rahi are somewhat resistant to this mask's effects and are therefore at times quite difficult to manipulate. Typical, non-insectoid Rahi do not have the amount of willpower needed to resist the mask-user's influence, with the possible exceptions of Krahka and Keetongu. This mask is one of the few to have Elemental Powers, although it will not boost the user's powers if they already have Rahi control abilities.
- Toa Hagah Kualus - Primary mask.
- Toa Hytrax Luwaro - Primary mask.
- Toa Recla Yuna - Primary mask.
- Toa Sepţiu Åusår - Primary mask.
- Luwaro - Formerly; became Great when he was transformed into a Toa Hytrax.
- Yuna - Formerly; became Great when she was transformed into a Toa.