The Ōtsutsuki Clan, the originators of the Puppet Technique, developed a mass collection of puppets to guard the Energy Vessel located within the Moon's interior. Powered by the vessel's vast energy, these puppets functioned in a manner simmilar to robots, mercilessly taking down whatever threat nessessary. With the destruction of the energy vessel, the puppets, along with most of moon's interior was shut down for good during Toneri's attempt to destroy the world.