This is the fighting style used by Killer B while using his Supervibrato Lightning Release Swords. When in battle, B holds his swords in a peculiar and unique manner instead of the traditional manner — in his hands. The first two are held in the hinge joint of his right and left arm, another between his shoulder blade and neck, one in his mouth, under his left armpit, another between the hip joint of his right, raised leg and the back leg of the same raised leg. As strange as it seems, Killer B is extremely skilled with these blades and this fighting style which he began adopting since a young age. He can spin in a manner similar to a buzz-saw, or else employing a series of unrelenting attacks switching the locations as well as the blades with which he attack, leaving no openings for even a skilled Sharingan user like Sasuke Uchiha, and a highly trained swordsman like Suigetsu Hōzuki, who remarked that the method of attack was completely unpredictable. Killer B was also able to throw these swords from their normally awkward positions, either to hit his opponents from range, or to impale his opponent at close range and cause damage that would normally be lethal.
The swords can be charged with lightningchakra to greatly increase their cutting power through high-frequency vibrations. Because of the streamline shape of these swords, they serve as fairy good projectiles as well. In the anime Killer B was able to use the Eight-Tails' tentacle to extend his reach for a surprise attack.
Despite carrying more swords than should be reasonable to begin with, Killer B does not carry a single one of these blades in his hand but instead, keeps them all held in his joints, and mouth.