Mutated Kakugans

Inside of this Tokyo Ghoul universe, there seems to have been a creation through scientific events that have affected the body of a ghoul, the best way to notice if a ghoul has had specific event of such happen to them is by the color of their kakugan, which from doing so is called a "Mutated kakugan" it usually occ urs through a n unnatural mutation in the RC cells themselves, one that doesn't create kakuja or such but affects all the RC cells in a way, the ones that have been uncovered are the following

Blue Eye Kakugan: This mutation occurs through a specific procedure, that involves forcing the

ghoul to develop their Rc count by extracting their kagune and forcing them to devour it, This unlike kakuja, would cause a different mutation due to the ghoul eating their own Rc cells, meaning the cells devoured wouldn't affect the actual mutation of the kagune to not become kakuja, but to simply raise the RC level of ghouls to a even higher RC rate, this method is usually lethal unless seals are placed in the body of the ghoul.

Known Affected Characters: Arran

Purple Eye Kakugan: This mutation is considered to be alike the Blue eye, but is considered a "Failure" despite the term of being a failure, they gain power in a whole new way, where their kagune absorbs the RC they gain.



The cells develop and mutate in a way so that the usual kagune of a ghoul is a kakuja, their full original kagune form simply is kakuja, and the cannot remove the kakuja, due to the kagune becoming the kakuja.

Known Affected Characters: Kakusu, Raven

Green Eye Kakugan: Unlike the others, this mutation is actually natural, but is required a certain procedure to cure, When a human with ROS goes down, but has ghoul Like strength, which is 0.1% of humans alive, they can get a kagune transplant, hence the ROS fades into the kagune, efficiently their kagune wouldn't take a certain form. It can also become all 4 types of kagune, but usually taking the form of what Kokahou is implanted, The ROS would move into the kouhaku and mutate the kagune so that it can change what exact shape and form it takes

Known Affected Characters: N/A

Yellow Eye Kakugan: This kakugan is acquired by editing the RC cells to give them a certain effect, method done usually through radiated genetic modification as each cell is given a trait (Pick a bad trait and it could kill you or cause immense hard) when this occurs, your Rc cells will gain an effect for the kagune and all RC cells, examples would be the kagune would be immensely hot if you edited the RC cells to be very hot, or maybe have electric charges if you generate the RC cells with a constant charge, gains from a source in them or even poison, All of the effects since the RC is in your blood stream will also affect you, like you may feel the constant burning throughout your body, but your body may be resistant, or maybe you constantly feel the electricity running through you, or even feel ill at all times from poison

Known affected characters: NA

White Eye Kakugan: This kakugan is formed when the RC cells in ones body is formulated into simple plain RC and is forced to carry no aspect, this would truly make your kagune useless due to your Rc taking the form of simple RC and may as well be forcing yourself to gain ROS, but as discovered through Arran, if using quinque tech to manipulate the shape of the simple RC cells to bend into other types of RC cells using quinques electrical signals from the brain, then this can be very powerful and effectively strong, and frightening, although usually white eye ghouls suffer immense ROS related issues. This type of kakugan can only be present in full blooded-ghouls.

Known affected characters: Arran

Silver Eye Kakugan: Similar, yet different from a White eye Kakugan, ghouls of this kakugan are said to have far more strength and size than normal ghouls. Even though it's appearance is identical to a white eye kakugan, this type of kakugan can only be present in half-ghouls so it can be quite easily distinguished. The ghouls of this kakugan are tall, strong and very fast. Much else is not known about this kakugan at the moment.

Known affected characters: Ginme

Hybrid Kakugan : When ones RC cells are forced to mutate through the above not once, but twice, the ghoul gains a "Hybrid eye" where its Kakugan forms 2 iris rings around the pupil, the 2 rings different colors based on the type of experiment that was done, E.G: Green ring inside, Blue outside or Yellow Ring inside and White ring outside Due to this kind of mutation, a purple eye can not under go a dual eye status due to the fact its already mutated into a kakuja and may not mutate any further

A second mutation that is caused by such affects is most likely to kill the user, a 30% chance of survival when undergoing this procedure, some more than others and some less, depends on the type of mutation usually but most people usually die from it

Known affected characters: Arran