is the founder of the Mishima Zaibatsu. He was defeated during a hostile takeover
by his son 50 years before the fifth King of Iron Fist Tournament. As Heihachi
started to steer the company into the military industry (something Jinpachi
had wished against) Jinpachi tried to retake the Zaibatsu, but failed,
and was imprisoned below the Hon-Maru, one of Heihachi's compounds, where
he died sometime later of starvation. Jinpachi is the final boss of
Tekken 5 and Tekken 5: Dark Resurrection...
He is Heihachi's father, Kazuya's grandfather and Jin's
Hon-Maru was left
practically in ruins after The King of Iron Fist Tournament 4, when Jin
Kazama left both Heihachi and Kazuya unconscious. Soon after, G Corporation,
a rival of the Mishima Zaibatsu, attacked with a unit of Jack-4s. Kazuya
stayed and fought alongside Heihachi for a short time, but then threw Heihachi
into the group of Jack-4s to cover his own escape. One of them self-destructed,
seemingly killing Heihachi. The resulting explosion released Jinpachi from
the basement of Hon-Maru, and the demon that possesses his body seeks to
destroy all existence. Jinpachi emerged from the rubble to seize control
of the Mishima Zaibatsu.
After taking back
the Zaibatsu, Jinpachi could feel the entity which controlled him slowly
dominating his mind and will. He decided to host a fifth King of Iron Fist
Tournament, hoping that one of the fighters that emerged would be able
to defeat him and kill him. On a more personal level, Jinpachi wrote a
letter to his old friend, Wang Jinrei, asking him to enter the tournament
and stop the cursed Mishima bloodline.
At the tournament's
conclusion, Jinpachi's wish is granted, and he is defeated and put to rest
by his great-grandson, Jin Kazama, who takes the Mishima Zaibatsu over
to start his own plans for World Domination.