Respect Kazuya "Devil" Mishima
Respect the baddest SOB in the Tekken world: Kazuya Mishima
Kazuya Mishima as he currently appears in Tekken 6
Kazuya's background story
Kazuya Mishima is the son of Heihachi Mishima, the long-time Chief Executive Officer of the Mishima Zaibatsu: a powerful worldwide conglomerate and its various subsidiaries. He is also the grandson of Jinpachi Mishima and father of Jin Kazama, having had a relationship with Jun Kazama.
When Kazuya was a five year old child, he was thrown off of a cliff by his father, who claimed that his son was weak. If Kazuya was to be his father's successor to the Mishima Zaibatsu throne, he was to not only survive the fall, but climb back up the rocky cliff as well. Kazuya nearly died from the fall, but his survival was assured through a deal with the Devil, who promised him enough power to take his revenge on his father.
In the years prior to the events of the original Tekken, Kazuya entered martial arts tournaments all over the world, becoming an undefeated champion (only Paul Phoenix ever managed a draw with him.) When the first Tekken tournament was announced, Kazuya took the opportunity for vengeance.
The King of Iron Fist Tournament
Kazuya as he appears in Tekken
Apathetic towards the tournament's proposed one billion dollar prize and fueled by his hatred for his father, Kazuya won and dropped Heihachi's unconscious body from the same cliff he had been thrown from as a child.
Tekken 2
Kazuya as he appears in Tekken 2
The Zaibatsu became more corrupt than ever under Kazuya's leadership and engaged in many illegal activities such as assassination, extortion, drug dealing and the smuggling of endangered species. A second tournament is also announced. Heihachi, having survived both his battle with Kazuya and the subsequent fall, entered the tournament, having trained and meditated in the hills after his defeat. It is during the events of Tekken 2 that Kazuya meets Jun Kazama and eventually makes her a mother.
Tekken 2's intro showcasing Devil and Angel fighting over Kazuya's soul.
YouTube video
Heihachi's ending
YouTube video
The G-corporation found the remains of Kazuya's body and brought him back to life. The means to how they did it are unknown. Kazuya accepted G-corp's offer to study him because he looked to study the secrets of the Devil Gene lurking inside him. This was Kazuya's hobby for 20 years.
Tekken 3
Kazuya is absent during the events of The king of Iron Fist 3.
Tekken 4
Heihachi has been searching for Jin because he desired to splice Devil genes with Ogre gene to create the ultimate creature. During his quest Heihachi found a picture of Kazuya's corpse. He inmediately identified his fallen son and sent a squad of Tekken Force to retrieve the corpse. However what the squad and most importantly Heihachi did not expect was to find out Kazuya was alive. Kazuya angry that Heihachi had ruined his plans once again; decimated the Tekken Force. Heihachi smirks and starts Tekken 4.
Kazuya defeats Lee during Tekken 4 yet again. Then he went on to fight Jin Kazama in the semi-finals. However Jin Kazama was not in time for the fight and Kazuya was moved to the finals by default. Kazuya knew Heihachi was behind Jin's absence and demanded to see his son for his own personal motives--Kazuya desired to retrieve the half of Devil that lurked within Jin. Kazuya lets Heihachi know of his desire to meet with Jin and Heihachi tells him that he will meet with Jin after their fight. After the fight Heihachi took Kazuya to the Honmaru where Kazuya met Jin. Heihachi won. Devil took control of Kazuya once it found Jin. Heihachi was shocked to see Devil, and the entity inmediately gave Heihachi a taste of it's power by blasting him out of the arena with a telekinetic blast. Kazuya then regains control and awakens Jin.
Kazuya is knocked unconscious by a very pissed off Jin Kazama.
Tekken 5
When Kazuya regained consciousness just in time to help his father fight off a squadron of Jack-4s sent to kill him. Father and son fought together for the first time in more than 20 years. However Kazuya not being one to forget his plans for vengence did not hesitate to betray Heihachi by throwing him into the ground and leave him defenseless against the army of Jacks. Kazuya transformed into the Devil and escaped the honmaru's explosion.
Note how Kazuya and Heihachi both shatter the Jacks with single blows. Also note how Kazuya grabs a Jack and throws it against a handful of Jacks with one of them flying several meters away from kazuya and through a wall.
During Tekken 5 Kazuya decides to take vengence on those who betrayed him(G-corp) and gain control over it.