Tailed Beast Ball

The Tailed Beast Ball is the ultimate technique of a tailed beast, which can also be used by a jinchūriki while transformed.

History
Tailed Beast Balls are made from an 8:2 ratio of positive black chakra (+の黒チャクラ, purasu no kuro chakura) and negative white chakra (−の白チャクラ, mainasu no shiro chakura).[2] Users must gather and balance this chakra in their mouths, shape it into a sphere (or a conical shape in the case of the Ten-Tails), and then fire it at their target; Gyūki likens this to vomiting.[3]Most users fire their Tailed Beast Balls as-is, while others may consume the ball and fire it from their mouth as a beam. Gyūki is even shown doing something in between, not consuming its Tailed Beast Ball yet still firing it out in a wave.[4] There is no limit to how much chakra can be put into a Tailed Beast Ball so long as the 8:2 ratio is maintained: on one occasion, Kurama pours almost all of its chakra into a Tailed Beast Ball, making the ball many times larger than itself;[5] on another occasion, five tailed beasts combine their Tailed Beast Balls into a single large one.[6]

Tailed Beast Balls are incredibly dense, such that, when a version 2 Naruto Uzumaki consumes one, he starts sinking into the ground due to the increased weight.[7] Despite how heavy they are, they travel rapidly once fired, enough to hit a target several countries away in only a few moments.[8] Tailed Beast Balls are very destructive, creating explosions that are visible from far away and that vaporise almost everything in the blast area.[9] The extent of the damage is dependent upon how the ball is fired and how much chakra it has, but at its "standard" size it is enough to destroy mountains.[10] Tailed Beast Balls are comparatively weaker if a jinchūriki uses one without entering their Tailed Beast Mode, yet it is still enough to represent a serious threat to people and infrastructure.[11]

Some jinchūriki are shown using Tailed Beast Balls in atypical ways. As the Ten-Tails' jinchūriki, Obito Uchiha is able to form multiple Tailed Beast Balls at once via a tree he creates, each of which can fire in a different direction.[12] Naruto, when using his Nine-Tails Chakra Mode, can form a Tailed Beast Ball with his hands, similar to how he makes the Rasengan.[13] He can also add natural energy to his Tailed Beast Balls, making them more powerful,[14] while also allowing them to be used against Truth-Seeking Balls.[15] In the anime, Sora uses an entirely white Tailed Beast Ball while transformed under the influence of the Nine-Tails' chakra.[16]