The Tailed Beast Ball 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 black and white chakra needs to be balanced at an 8:2 ratio respectively or it will backfire. 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 of their tailed beasts, they can perform this technique despite not being fully transformed, as seen when Naruto Uzumaki used it in his four and six-tailed forms. 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 from the Eight-Tails can fill an entire valley with the explosion; while the Nine-Tails' can create an explosion that is far larger than the Hokage Monument and the mountains around it.

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.

Users
One-Tailed Shukaku
Two-Tailed Monster Cat
Three-Tailed Giant Turtle
Four-Tailed Monkey
Five-Tailed Dolphin Horse
Six-Tailed Slug
Seven-Tailed Horned Beetle
Eight-Tailed Giant Ox
Nine-Tailed Demon Fox
Killer Bee

Classification
Tailed Beast Skill

Class
Offensive

Range
Long-range