Editing Devil Kazuya

'''Devil Kazuya''', also known as '''Devil''', is a form [[Kazuya]] can take in ''[[Super Smash Bros. Ultimate]]''.

Kazuya assumes his devil form when performing certain moves, as listed below. It is merely an aesthetic effect, although some of these attacks activate [[Special Zoom]] or have [[armor]]. [[Kirby]] can also take the appearance of Devil when using [[Devil Blaster]] after copying Kazuya.

There are three confirmed carriers of the Devil Gene. The first is Kazumi, [[Heihachi]]'s wife and [[Kazuya]]'s mother. Her maiden bloodline, the Hachijō family, has possessed the gene since ancient times and passed down the gene through the generations. This implies her family also has a connection to Azazel. She ends up using her powers to fight and kill Heihachi, as she feared he had become too powerful and became a threat to the world. Heihachi ended up reluctantly killing her out of self defense and to rid the world of the demon he thought was the love of his life.

The second carrier is Kazuya. After he witnessed his mother killed by his father at age 5, he challenges Heihachi to a fight out of vengeance. He is quickly defeated and thrown off a cliff by Heihachi, to both test if Kazuya truly has the gene and if he could be a worthy successor to the Mishima Zaibatsu. The gene is the only reason Kazuya survived the fall, and he would spend the next several decades training and mastering his devil powers out of revenge. He loses half of his devil at the end of ''Tekken 2'', when Heihachi throws him into a volcano. This saga reaches a climax in ''Tekken 4'', where he overpowers the devil within him and takes control of his powers, and he is then able to freely turn his powers on and off at will. During the climax of ''Tekken 7'', he is shown to possess an even stronger version of his devil form, distinct from the usual one he uses that also appears earlier in the story.

After throwing Kazuya off a cliff, Heihachi wondered if he possessed the Devil Gene. He then had another son with an unidentified Swedish woman as a test subject. This child was named Lars Alexandersson, likely his mother's maiden name. After learning that Lars did not have the Devil Gene, Heihachi abandoned Lars and his mother, and he could not recognize Lars as his son when meeting him again during the events of ''Tekken 6''. Initially a simple Tekken Force soldier, Lars went rogue and staged a coup d'etat against the Zaibatsu. The only people confirmed to know of his lineage are himself and Kazuya, who have a silent agreement to stay out of each other's way.

 

Heihachi also experimented with synthetic vitro-fertilization to create a human strong enough to withstand the devil gene. The only confirmed subject to survive is Steve Fox, created from the harvested eggs of Nina Williams while she was cryogenically frozen. He was also abandoned after the experiments proved fruitless, and he spent his life training as a professional boxer. He despises the Zaibatsu and has tried many times to reconnect with his mother, but Nina refuses to acknowledge him as her son.

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DevilKirbyCopyAbility.jpg|"Devil Kirby" along with his normal appearance with Kazuya's Copy Ability on [[Mishima Dojo]].