Jinpachi Mishima is the final boss in Tekken 5 and Tekken 5: Dark Resurrection. In both games, Jinpachi is unplayable. However, Jinpachi is a playable character in the PlayStation 3 release of Dark Resurrection, which is called Tekken 5: Dark Resurrection Online and also in the upcoming Tekken Tag Tournament 2. Jinpachi is the original founder of the Mishima Zaibatsu and the one who eventually announced The King of Iron Fist Tournament 5. After Heihachi Mishima betrayed him and stole the Mishima Zaibatsu from him, Jinpachi was imprisoned in an underground prison for over 40 years. He escaped when an explosion broke the seal restraining him and he managed to break free from his prison. He gains inhuman strength when he becomes possessed by an evil force.
Jinpachi Mishima was the original founder of the Mishima Zaibatsu. He was a renowned martial arts master, and was famous throughout the world. However, he would be betrayed by his son, Heihachi Mishima, losing the Mishima Zaibatsu and fading into obscurity. Heihachi began to steer the Mishima Zaibatsu into the military industry, and Jinpachi, not liking the companies new direction, attempted to overthrow his son, but failed and was subsequently imprisoned in an underground prison under the Hon-Maru.
After being trapped for so long, Jinpachi eventually died, only to be brought back to life after being possessed by a ghost/demon (unrelated to Devil and the Devil Gene). The damage to Hon-Maru following dozens of Jack-4s exploding weakened the Hon-Maru structure, giving Jinpachi his chance to break free. Filled with inhuman strength, he unleashed all of his power and broke free. Surrounded by an evil aura, he grinned devilishly as his eyes glowed fiery red. He would go on to reclaim the Mishima Zaibatsu and throw The King of Iron Fist Tournament 5, only to be defeated by his great-grandson Jin Kazama.
In his non-canonical ending, Jinpachi sadly says, "It looks like nobody was able to stop me." Jinpachi sheds a tear that appears to be blood. The spikes on his back grow longer, and the spikes in his arms grow longer. Jinpachi screams for a while. Jinpachi causes a huge explosion. A beam is shown shooting towards the sky. A black screen is shown, and words (in white) say, "Jinpachi's mind is consumed by the devil as he reaches his final transformation. The world will never be the same."
His non-canonical ending is unlocked by letting Jinpachi defeat your character and not continuing the game (letting the continue countdown to zero). You could also buy it in the PSP version.
- As stated by Katsuhiro Harada through Twitter, Jinpachi didn't possess the Devil Gene and that a revengeful ghost possessed him while being imprisoned underneath the Tekken Honmaru.
- Jinpachi's evil aura awakened Mokujin in Tekken 5.
- Jinpachi is the best friend of Wang.
- Although Jinpachi is not playable in Tekken 5 or the PSP version of Dark Resurrection, his scenes are shown in Theater mode.
- Jinpachi cannot be unlocked as a playable character in the PS2 and PSP versions of Tekken 5 and Tekken 5: Dark Resurrection, but this can be achieved by using a cheating device, such as a GameShark.
- When Jinpachi's name is written in Japanese, it is 三島 仁八(Mishima Jinpachi in Kanji) or みしま じんぱち(Mishima Jinpachi in Hiragana).
- Jinpachi makes cameo on the console version of Tekken 6: Bloodline Rebellion wearing a Kabuki cloth with his friend Wang for a while and is mentioned in Wang's ending. He is reunited with Wang when he apparently dies. This ending is considered non-canon.
- His appearance in Tekken TAG Tournament 2 is that of his human form, not his possessed form.
- Jinpachi is named after Harada's father.