Talk:Kagune/@comment-10613301-20150429155136/@comment-26509016-20150619095904

If you increase the number of RC-cells which you possess, then you're able to create a bigger kagune. An increased number of RC-cells eventually leads to a kakuja. That should answer the first question.

As for the second one, don't forget that a kagune was often described and shown as a "liquid muscle". Kaneki already changed the shape of his kagune several times, Tsukiyama could also change the shape of his kagune up to a certain level when he fought Touka back then. The reason why his kagune looks as it does is simply because he's used to it. If you're starting to play football, you'll often have problems to judge the distance between the ball and the point which you wanna hit, like your comrade or the goal. You'll often use too much energy, or not enough, kick the ball too far to the left or the right side and all that. After years of experience though, you'll be able to do these standard movements without any problem, with closed eyes. Same as that, most people have one single dominant hand. Yet, with enough training, you can learn to write perfectly with both of your hands. With enough training and experience you can also force your foot behind your head, twist your arms around completely and all that. Basically, Tsukiyama could make his kagune look like an airplane.

But keep in mind that it's just theory. In reality, it's probably too hard for most ghouls, especially koukaku's, since their kagune is very dense and already resembles steel, so they're not that easy to shape. Just theory.