Kazuya defeated him, threw him off the same cliff, and assumed control of the Zaibatsu, continuing his father's criminal practices. Years later, when Heihachi hosted a martial arts tournament called the King of the Iron Fist, Kazuya returned in order to exact revenge on his father. He soon bore a son, Kazuya Mishima, but found him to be weak and threw him off of a cliff in order to test his strength and to see if he had the Devil Gene when he was five years old.
Heihachi overthrew and murdered his father Jinpachi Mishima in order to take control of his company and begin a criminal empire. He was born to Jinpachi Mishima, a renowned martial artist and the founder of the Mishima Zaibatsu corporation. Heihachi Mishima is a major antagonist/protagonist in the Tekken series of fighting video games, and the archenemy of his son Kazuya Mishima.
