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"Roodaka watched with amusement as Nidhiki tried to master his new body. He was stumbling about on the sand, trying to move like a Toa but a prisoner of the monstrous form her mutation spinner had given him."
— Narrator, Birth of a Dark Hunter


Norik and Iruini mutated into Rahaga
Associated Kanohi Mask of Mutation
Matoran prefix None
Associated colors None

Mutation is a power that changes the molecular structure of a target. Mutagens only cause physical change and also effect non-living objects[1][2] but cannot change one's destiny.[3] Beings with a mutation power cannot mutate themselves.[4][5][6][7] In some cases, mutations can also cause fusions of two or more beings.[8][9][10]


Mutated Beings

Energized Protodermis

Hordika Venom

Pit Mutagen

Roodaka's Rhotuka



  • The Bohrok-Kal may have been created using Hordika venom or a variation of that.[39]
  • The Pit Mutagen affects organics, but much more slowly.[40]
  • The Mask of Life can reverse mutations, but not cause them.[41][42][43]
  • The Dark Hunter Tracker has claimed to be either a victim of the Hordika Venom or Roodaka's mutation spinner.[44]
  • Voporak's unique mutation is the result of combining Energized Protodermis, Roodaka's mutation spinner, and other mutagens.[45]


  1. "Mahri Nui." World, p. 89.
  2. "Official Greg Discussion", post 8203. BZPower Forums. (archived on
  3. "Official Greg Discussion", post 12150. BZPower Forums. (archived on
  4. "Chat with Greg Farshtey", post 12447745. LEGO Message Boards. (archived on
  5. "Official Greg Discussion", post 4221. BZPower Forums. (archived on
  6. "Official Greg Discussion", post 3230. BZPower Forums. (archived on
  7. "Official Greg Discussion", post 7122. BZPower Forums. (archived on
  8. BIONICLE: Mask of Light.
  9. Shadows in the Sky. BIONICLE Legends 9.
  10. "Chapter 10." Reign of Shadows.
  11. "Official Greg Dialogue", post 10316. BZPower Forums. (archived on
  12. "Official Greg Dialogue", post 12746. BZPower Forums. (archived on
  13. "Official Greg Dialogue", post 13227. BZPower Forums. (archived on
  14. "Official Greg Dialogue", post 12804. BZPower Forums. (archived on
  15. "Chat with Greg Farshtey", post 9852521. LEGO Message Boards. (archived on
  16. "Official Greg Discussion", post 3358. BZPower Forums. (archived on
  17. "Official Greg Dialogue", post 6432. BZPower Forums. (archived on
  18. "Chat with Greg Farshtey", post 9929347. LEGO Message Boards. (archived on
  19. 19.0 19.1 "Official Greg Discussion", post 2600. BZPower Forums. (archived on
  20. "Official Greg Discussion", post 1095. BZPower Forums. (archived on
  21. "Official Greg Discussion", post 4288. BZPower Forums. (archived on
  22. "Official Greg Discussion", post 3062. BZPower Forums. (archived on
  23. "Official Greg Discussion", post 3115. BZPower Forums. (archived on
  24. "Official Greg Discussion", post 3147. BZPower Forums. (archived on
  25. "Official Greg Discussion", post 2789. BZPower Forums. (archived on
  26. "Official Greg Discussion", post 2389. BZPower Forums. (archived on
  27. "Official Greg Discussion", post 2860. BZPower Forums. (archived on
  28. "Official Greg Discussion", post 2594. BZPower Forums. (archived on
  29. "Official Greg Discussion", post 2516. BZPower Forums. (archived on
  30. "Official Greg Discussion", post 3194. BZPower Forums. (archived on
  31. "Chapter 8." Maze of Shadows. BIONICLE Adventures 6, pp. 103-104.
  32. "The Dweller Report."
  33. "Fractures". BIONICLE 27.
  34. "Chapter 6." Web of the Visorak. BIONICLE Adventures 7.
  35. BIONICLE 3: Web of Shadows.
  36. "Official Greg Discussion", post 12501. BZPower Forums. (archived on
  37. Swamp of Secrets. BIONICLE Legends 10.
  38. Challenge of the Hordika. BIONICLE Adventures 8.
  39. "Bohrok-Kal." Encyclopedia Updated, p. 16.
  40. "Official Greg Discussion", post 7413. BZPower Forums. (archived on
  41. "Official Greg Dialogue", post 7825. BZPower Forums. (archived on
  42. "Official Greg Dialogue", post 12484. BZPower Forums. (archived on
  43. "Official Greg Dialogue", post 2812. BZPower Forums. (archived on
  44. "Tracker." Dark Hunters, p. 71.
  45. "Voporak." Encyclopedia Updated, p. 153.