Tekken 4

Tekken 4 (Japanese: 鉄拳4) is a 2001 fighting video game developed and published by Namco as the fourth main installment in the Tekken series. It was released as an arcade game in 2001 and on the PlayStation 2 in 2002.

Storyline
Two years after the King of Iron Fist Tournament 3, Heihachi Mishima and his scientists have captured samples of Ogre's blood and tissue to splice with Heihachi's genome, in order to make him immortal. The experiment fails, since Heihachi lacks the Devil gene. His grandson, Jin Kazama, possesses the Devil gene but has been missing since the previous tournament. Meanwhile, Heihachi learns that the body of his son, Kazuya, who also had the Devil gene and whom Heihachi killed by throwing into a volcano twenty years ago, is stored in the labs of the G Corporation, a cutting edge biotech firm making revolutionary advances in the field of biogenetics research. Heihachi sends his Tekken Forces to raid G Corporation facility in order to retrieve Kazuya's remains. However, the mission fails when the Tekken Force are wiped out by none other than Kazuya himself, who has been revived by G Corporation. Unknown to Heihachi, Jin has been in a self-imposed training exile in Brisbane, to unlearn the Mishima karate style and master traditional karate, loathing anything to do with his bloodline since Heihachi's betrayal.

In an attempt to lure Kazuya and Jin out, Heihachi announces the King of Iron Fist Tournament 4, with the ownership of the Mishima Zaibatsu being the top prize. At Stage 7, where Jin and Kazuya are scheduled to fight, Jin is ambushed and captured by the Tekken Force and taken to Hon-Maru, a Mishima Dojo in the woods. Kazuya is declared the default winner of Stage 7 and meets Heihachi at the final stage later questioning him of Jin's disappearance. After the fight, Heihachi leads Kazuya to Hon-Maru, where an unconscious Jin has been chained. Kazuya's body is suddenly taken over by Devil, who telekinetically knocks out Heihachi and then subconsciously taunts Jin, which causes him to wake up with his Devil powers activated. Breaking the chains, an enraged Jin fights Kazuya and defeats him. Heihachi regains consciousness and goes to fight against the exhausted Jin, but is also defeated. As he is about to finish Heihachi, a vision of his mother, Jun Kazama, causes him to spare Heihachi in her honor. Stretching his Devil wings, Jin takes flight, leaving the unconscious Kazuya and Heihachi in Hon-Maru.