Killer B's Jinchūriki Forms

Kira Hachi is a Jinchūriki of the Eight-Tailed Beast, and is therefor cabable of transforming into various forms that more and more begins to ressemble his Tailed Beast, until he finally takes on the completete form of his Eight-Tailed Beast. So far, he has only displayed two forms. Unlike Naruto and Gaara he seems to have full controll of his Tailed Beast and his transformations.

Three-Tailed Transformation
When need be, Kira Hachi will tap into the Eight-Tailed Beast’s chakra and generate a demon cloak similar in appearance to Naruto’s One-Tailed Transformation (and onwards).

In this form will his incisors grow long and sharp and Kira Hachi is covered in a boiling chakra shield, that takes the shape of his tailed beast by forming it’s three octupus-arm like tails on his behind, and paws of chakra around his hand. However, instead of just creating ears like the demon fox's "ears" his chakra cloak have formed what appear to be a pair bull-like horns. Due to his great control of his Tailed Beast can this transformation be done instantly

In this form he becomes powerfull enough to blow away Sasukes entire neck and chest, but also begins to move in a straight line something Sasuke noted to be a weakness. However Kira Hachi just replied by asking if he could follow up on him. According to himself can only Sasuke and his "brother" match up to his speed.

Full Transformation
While fighting Sasuke Uchiha and his team, Kira Hachi managed to wound Sasuke long enough to transform into a full form.

In this form, he takes on the appearance of the Eight-Tailed Beast itself, rather than just a cloak, appearing like a huge ox with eight octopus-like tentacles as its tails and four horns on his head, thought with one of them broken. Like with his previous form, he seems to be in full control of this form, however to what extent is still unknown.