The Six Paths of Pain (ペイン六道, Pein Rikudō) is an Outer Path technique devised by Nagato after being crippled by Hanzō and rendered emaciated from the numerous chakra receivers embedded in his back by the Demonic Statue of the Outer Path. By piercing corpses with chakra receivers, a wielder of the Rinnegan can manipulate the bodies as though they are their own.
As Pain, Nagato mainly used the Deva Path
in presenting himself to the Akatsuki, while using it along with the
others in battle. Though he controlled the bodies as extensions of his
will, Nagato still saw his vessels as separate individuals from himself. Obito Uchiha would later adopt this fighting style and create his own Six Paths of Pain during the Fourth Shinobi World War using the reincarnated jinchūriki.