The Hellspawn (in Japanese: 式神 Shikigami) are a race of mythical Japanese demons and a large group of supporting antagonists in the 2002 videogame remake Shinobi. These monsterous dark spirits from the netherworld are comprised entirely of Yin, the very spiritual essence of the negative emotions and dark energy of all living things, they can be powered or revitalized by talismans called Gojufus. The Nakatomi Conglomerate, a high-tech company in Japan have also unknowingly taken part in unleashing the Hellspawn invasion when they helped Hiruko in rebuilding his ultimate weapon, Yatsurao.