In Street Fighter X Tekken, Heihachi partners with Kuma. After discovering that both Jin and Kazuya have begun to search for Pandora, Heihachi begins his own journey to exterminate the two in order to reclaim the Mishima Zaibatsu. He is currently fighting his son Kazuya and his grandson Jin for control of the Mishima Zaibatsu.
He is usually a callous and heartless individual, but from time to time shows a softer side. The man known as the King of Iron Fist, he is a formidable figure whose incredible strength betrays his age. He is also the 'Commander' of the Tekken Force Unit. Heihachi Mishima debuted in the first Tekken game as the main villain and he has returned for all subsequent titles.
