Tailed Beast Ball

The is the ultimate attack of a tailed beast. To form the attack, they gather both positive "black" chakra, and negative "white" chakra, shape it into a sphere, and then compress it inside their mouth. The chakra needs to be balanced or it will backfire. The black and white chakra needs to be kept at an 8:2 ratio respectively. The power of the attack is also relative to the power of the user. The tailed beasts' jinchūriki can use this ability, though they need to be in their full tailed beast forms. Should the jinchūriki lose control to their tailed beasts, they can perform this technique despite not being fully transformed, as seen when Naruto in his four and six-tailed form. Even without a full transformation, the technique is capable of destroying three Rashōmon gates without losing any of its momentum. A fully charged Tailed Beast Ball can create an explosion that is larger than the Hokage Monument and the mountains around it, as seen during the Nine-Tails attack on Konoha.

In the anime, Naruto in his six-tailed form was seen firing a more concentrated beam of chakra as well as lobbing several spheres at once while fighting Pain.

Minato Namikaze based the Rasengan off of the Tailed Beast Ball. Killer Bee observes that the process for forming a Rasengan is the same as forming a Tailed Beast Ball. However, the addition of chakra rotation is necessary to control the Ball without being in tailed beast form.

Trivia

 * Both the Two-Tailed Monster Cat and the Three-Tailed Giant Turtle (in the anime) performed elemental versions of the Ball, the Three-Tails being able to fire two at once.
 * The One-Tailed Shukaku uses Wind Release: Drilling Air Bullet, a jutsu of compressed air mixed with chakra from its gut instead of drawing together raw chakra, similar to the Tailed Beast Ball.
 * According to the Eight-Tailed Giant Ox, using this technique feels very much like throwing up.