Utakata's Jinchūriki Forms

Utakata is the jinchūriki of the Six-Tailed Slug. He's capable of using the Six-Tails' chakra in various and different levels, but if he's able to control every form is yet to be seen. In the past, the Six-Tails has already manifested while protecting his vessel from any harm; though Utakata seemed to haven't control of it. Similar to Naruto Uzumaki, Utakata has a seal in his stomach possibly to limit the Six-Tails' power.

Initial Jinchūriki Form
By using the Six-Tails' chakra, Utakata is capable of realizing his power and turn the tide of battle in his favor. In contrast to Naruto, Utakata's eyes turn yellow while displaying this power, but he doesn't have any other changes like Naruto. With this, his physical power and chakra increase considerably making it possible for him to free himself from any control such as Shiranami's wordbind technique. In this form, he displays waves of chakra towards many enemies and is capable of overwhelming them without any problems.

Full Six-Tailed Transformation
During the attempted forced extraction by his master of the Six-Tails from Utakata's body, Utakata slipped into his full six-tailed form and killed his master. After this incident, Utakata defected from Kirigakure and developed his hatred for master and student relationships. It is not known, however, if Utakata was in control of his body during the transformation, or if the Six-Tails took control, similar to the Nine-Tailed Demon Fox when it takes over Naruto.