From BIONICLEsector01


The purpose of headcanon is to add further worldbuilding to the BIONICLE universe, which Greg Farshtey saw much untapped potential in.[1] These headcanons do not stray far from actual canon, and are well thought out and sourced.


While Greg admits to not having a pattern when coming up with kanoka combinations, he has implied the community could come up with one.[2]

Primary Disks

The main eight Kanoka disk powers are opposites of each other.[3] The pairings are:

  • Weaken and Regeneration
    • Initially, Greg denied the idea that the Jutlin is made from Weaken disks,[4] but later accepted it.[5] The Kiril and Regeneration disks do not work on living targets.[6][7][8][9][10][11][12][13][14] However, Weaken disks do,[15][16][17][18] while it is implied by official media [19][20][21] and stated directly by Greg[22] that the Jutlin does not (although Greg has also indicated that it can[23][24]), which is how it can rot anything the Kiril repairs and vice versa,[25] even Protosteel.[26][27] While Greg has said the Jutlin can “weaken” things,[28] which a mask made from Weaken disks would do,[29] he has also said the Jutlin specifically rots, which is different from weakening.[4] He was also unaware if a Mask of Weakening existed while the Jutlin did at the time.[30]
  • Enlarge and Shrink[31]
  • Teleport and Freeze
    • With Teleportation being instantaneous motion, this implies that the opposite is no motion at all. At first, this would make sense to be Stasis Fields, but the opposite of that is Stasis Field Negation, as used by Brutaka. While Freezing and Stasis Fields are not technically the same,[32] they are still both forms of stasis, freezing motion but not time.[33][34] If Toa of Ice are capable of cryogenic stasis,[35][36][37] there is no reason Freezing Kanoka are not.
  • Reconstitute at Random and Remove Poison
    • Given that a Mask of Poison is canonically possible, its opposite power would be Remove Poison.[38] Both cannot infect non-living things like masks.[39][40] A mask made from a Remove Poison disk would be called the Mask of Purity because it ties into Purity being the opposite of Poison in MNOG II. Masks made from only one disk do not have to share the name of the disk, as shown by the Kualsi, Mask of Quick Travel, being made from a Teleport disk. A problem then arises, as the opposite disk of Remove Poison is Reconstitute at Random, which is more mutation than poison. However, poison in some cases might cause mutation, namely Hordika Venom.[note 1] This would solidify Remove Poison as the opposite power of Reconstitute at Random.

This does not apply to the elemental disks (except for perhaps Light and Shadow).

Translation and Incomprehension

The Mask of Incomprehension, being the opposite of the Rau, is made of the opposite disks, that being Reconstitute at Random and Shrink.

Levitation and Increase Weight

Increase Weight disks, being the opposite of Levitation, are made from Freeze and Regeneration.

Speed and Slowness

Slowness is not a canon mask or disk power, but it is a Kraata power, some of which are already masks. Also, just as airships use both Levitation and Increase Weight, ground vehicles use both Speed (which they already do canonically) and Slowness. Slowness would be made from Freeze and Remove Poison, the opposite of Speed.

Flight and Flight Negation

Since disks of Flight exist canonically, then Flight Negation (used by Venom Flyers) can also exist as a disk, being the opposite of Flight.

Arthron and Shelek

The Arthron and Shelek can counter each other, and therefore are opposite powers. The Shelek is not the opposite of the Mask of Sonics because Silence is a Sonics based power, not a power opposite of Sonics,[41] the Shelek cannot completely counter a Toa of Sonics, only slightly hinder their abilities,[42] and as noted above, elemental disks have no opposite, so there is no opposite of Sonics.

Fear and Courage

A Mask of Fear is canonically possible, meaning a Mask of Courage is too since it is the opposite power.[43]

Creation and Disintegration

Published material does not give any indication on whether the Mask of Creation is a Legendary or Great mask, but the very first answer Greg gave in 2007 implied that it would be Legendary.[44] Afterwards, he said it had not been decided yet,[45][46] although he leaned towards it being Great,[47][48] also saying a Noble version is possible[49][50]. He did specifically say once that it would be legendary,[51] but later clarified he meant no one knows if it really exists.[52] Then, in 2010, he changed his answer to that it is Legendary, on par with the Vahi and Ignika.[53] While it could still go either way, I prefer to have the Mask of Creation as a Great mask, so it can be made from disks. The opposite power would be Disintegration.[43]


The Mask of Mutation is made from Reconstitute at Random[54][55] and Remove Poison. The reason for Remove Poison is the fact that the mask can also undo mutations (which the Mask of Reconstitution cannot do), which also makes it its own opposite power.


The Mask of Healing is made from at least a Regeneration disk.[56]

Intangibility and Density Control

The Mask of Intangibility works the same as Density Control,[57] which is a canonically possible mask. However, the Mask of Density Control would only be able to control density increase, not decrease, or else the Mask of Intangibility would become redundant. This would also imply the masks of Density Control and Intangibility are opposite powers, similar to how Enlarge and Shrink are opposites, except for density rather than size. As an aside, Increase Weight and Density Control are different, perhaps not fundamentally, but definitely in practical functionality. The only known application of Increase Weight is for allowing Airships to descend. Density Control, specifically increase, is used to block attacks.


Given that various mutagens can cause Fusions, it is implied that the Mask of Fusion is made from at least Reconstitute at Random.


Given that the Melding Alternate Universe Makuta have Telekinesis while the main universe Makuta do not, one of the main universe Makuta's powers must be the opposite of Telekinesis. It is unknown at this time what that power might be, but whatever it is, it would require Freeze and Enlarge disks to be made as a mask power.

Power Quantitation

Some Kraata powers, which have different stages, are also mask powers, which have different power levels (Great and Noble). Great/Noble masks of elemental powers correspond to the power levels of Toa/Turaga, respectively. Greg has given several highly contradictory quotes on how a Turaga's elemental power compares to that of a Toa, such as 50%,[58] 33%,[59] 22%-11%,[60] 5%-4%,[61] and 0.2%.[62] Because Noble elemental masks would have the same level as any other Noble mask,[63] whatever the difference is between Toa and Turaga could be applied to the Great and Noble versions of any mask power. Greg has said Noble masks are 50% the power level of Great masks.[64] However, the Mask of Conjuring works for 15 minutes as a Great mask, and 5 minutes as a Noble, which is 33% of the Great, but because this detail was not presented to Greg for canonization, it will not be considered.

Descriptions of the various Kraata stages exist only for the first six, not the seventh. The seventh stage does have a greater level of power, but this could also just mean it has the same amount as the sixth stage (hence no description for it), but a greater level of control given its heightened intelligence. This is also evident from the fact that Makuta are on the same power level as the sixth stage,[65][66] but the level of control depends on willpower,[67][68] with Makuta usually having more than even the seventh stage.[69] Because of this, the sixth stage is the maximum power level.

Some of the Makuta's powers are Elements, which can be directly compared to those of Toa and the Bohrok (Kal). For actual power level, Makuta, Bohrok, and Toa are equal,[70][71][72] but a Makuta usually has more willpower than a Toa,[73][74][75][76] and both have more than a Bohrok.[77][78]

Hordika Venom

Greg has said Hordika Venom is not poison, meaning it cannot be cured by a Remove Poison disk,[79] because it is not fatal,[80][81][82][83] even though it is called poison several times,[84][85][86] Visorak themselves are called "poisonous scourge",[87] and poison is defined elsewhere as also just causing illness, not death.[88][89][40] The case can be made that Hordika Venom is a mutagen,[90] which Remove Poison can't cure.[89]

Below is a table comparing Hordika Venom to various mutagens as well as Lerahk's poison:

Substance Affects objects Affects living beings Causes physical effects Causes psychological effects
Energized Protodermis
Pit Mutagen
Mask of Mutation
Reconstitute at Random Kanoka
Roodaka's Rhotuka
Hordika Venom

While there are still contradictions among sources, more leads to Hordika Venom being a poison with mutagenic affects, meaning it, as well as venom from other Rahi,[16][121] can also be cured by Remove Poison. One way to cure Hordika Venom is to remove it,[122] which Remove Poison would do. Having Remove Poison disks be able to cure Hordika Venom does not fundamentally break the 2005 story, specifically the need for Keetongu as he still has the only possible cure.[123] While Remove Poison disks would remove the venom and undo the psychological effect, it cannot undo the physical mutation,[86] which is also why the Mask of Mutation would do the opposite, only countering the mutation and not actually remove the poison.[124]

Mask of Aging

The Mask of Aging is actually an inorganic Great Elda.[125]

Noble Olmak

This is a Noble Olmak.

Vehicle Avsa

Jetrax T6 Engine Thrust

The engine thrust for the Jetrax T6 is not given in canon, but provided that the Rockoh T3 has 2.5 million pounds of thrust, and the Axalara T9 has 7 million pounds, this implies the T6 engine has 4.75 million pounds of thrust. The amount of thrust of hypothetical engines such as T1, T2, T4, T5, T7, and T8 can also be found assuming a linear progression.

More so, since the amount of thrust increases with the engine number, it's possible the engines use Speed disks, with T1 using level 1 disks, T2 using level 2, and so on, maxing out with the T9 engine using a level 9 Speed disk. It's possible given that Artakha created the Great Disks (showing he's capable of creating a level 9 Speed disk) and the T9 engine.

Toa Mangai

Canonically, the Turaga of Mata Nui named several locations on the island after the Toa Mangai, namely Naho Bay and Mangai Volcano. However, there are other locations that have names, but do not have a corresponding character for which they are named. Some of these names are the rest of the Toa Mangai (except for Tuyet and Nidhiki for their betrayals).[126]

Naho wore a Kanohi Huna and wielded a warhammer.[127] She did not wear a Kakama as some suggest.[128][129][130]


For my analyisis of protodermis, see my TTV topic.

Antidermis and Viruses

Antidermis is a virus[131][132] (the term 'virus' is used differently in BIONICLE than it is in real life[133]) that every other virus is made from. They are simply variant 'strains' on the antidermis virus. This would explain why viruses are created and used solely by the Makuta[134] and all Makuta know how to work with viruses,[135] while other beings, even Artakha,[136] did not. Viruses have also been compared to actual computer viruses,[137] so using this analogy, antidermis is a computer virus that every other virus uses as their base code. However, with Makuta being experts in virus making, it is possible that they are able to create a virus that is so different from antidermis that it can even effect it,[138] which is how a virus was used on Kraata to create Shadow Leeches.[139]

To create a virus, Makuta first take antidermis from their essence, then in their labs[140] change the antidermis virus into a new one by controlling its properties.[141]

Greg has said that viruses and antidermis are not similar in nature,[138] but this cannot be true as they are at least both living viruses[142][143][144][145] in the form of energy.[146]

Canon Precedence

Everything in the sets are always canon[147][148][149] and take precedence over story.[150][151][152][153] This includes even the Stars sets,[154][155] but not their sizes.[156][157][158][159][160] However, different artistic interpretations from sets, comics, movies, etc are all equally canon.[161][162][163]

Published materials always take precedence over Greg's answers.[164][165][166]

Book, comics, and movies are equally canon,[167] but if they contradict, books and comics take precedence over movies.[168]

Web content is above comics,[169] and therefore books as well.

Software games and everything in them that is not present in other material are not canon[170] unless specifically stated otherwise.

Pre-established canon takes precedence.[171][172]


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  1. See section on Hordika Venom.
  2. Hordika Venom can only affect objects when closely tied to a living being, like Toa Tools, and the being is also mutated.[113][114][115]