Nine-Tails Chakra Mode (Sigma)

 is a is a heightened unique to those with Kurama's chakra sealed into them, using the Eight Trigrams Sealing Style. Naruto Uzumaki, and Minato Namikaze were the first to display this form.

Appearance
When first activated, Naruto gained a shroud with six magatama around his neck and two distinctive hair-like horns, similar to the Sage of Six Paths', along with a swirl design mimicking the Uzumaki Clan's crest.

Abilities
As with all jinchūriki transformations, the Nine-Tails Chakra Mode gives the user increased strength, speed, and defences. The Nine-Tails Chakra Mode's increases are noticeably superior: Naruto becomes strong enough to push a fully formed Tailed Beast Ball through a multiple layered barrier with just one arm, neutralise White Zetsu with a single kick despite their durability, and, in collaboration with B in his full Eight-Tails form, knock down Tobi's Demonic Statue of the Outer Path with an uppercut.[10] Naruto's speed is so great in this form that Killer B even had trouble determining if he had used the Body Flicker Technique when attacking Kisame. He could even surpass the speed of a fully charged, as well as blitz the extremely fast Third Raikage before the latter had any chance to react.[13] Naruto's durability is also very high in this form, as he was able to endure extreme heat with only minor burns. He could even withstand the technique in this form and while the shroud was completely destroyed after this, he only suffered minor physical wounds.

Tailed Beast Mode
All jinchūriki can enter Tailed Beast Mode, which grants them all the strength and abilities of their corresponding tailed beast. Most jinchūriki become small-scaled replica's of their beasts, those with the Eight Trigrams Seal however, Kokutō has a shroud - like Naruto - that parts down the middle and opens up into a full-length cloak (haori).