Initially the ill-tempered kenoryu kenpo instructor Michiyuki Taki (瀧道行, he took over the dojo upon Taki Michiyuki)Masato Kazama's disappearance. He worked covertly with the evil organization Crown to train fighters for their Guyborg program, turning Masato's brother Go over to them. However, he was double crossed by the organization and taken as a test subject himself, becoming the Mutian Jerks.
Jerks began life as a short tempered, overconfident dojo master known as Michiyuki Taki. At some point before the start of the series, Taki was set to face his Kenouryu rival Masato Kazama in the national tournament. However Masato went missing beforehand. Through unknown means, Taki became involved with the evil Crown corporation run by Mr. Bikross, and was charged with using his dojo to produce physically disciplined individuals to donate to their Guyborg program. Taki started on the path to mutation when he was visited by Masato's brother Go Kazama, who wanted to know if Taki knew anything about his missing brother's whereabouts. Taki claimed that Masato was weak and had run away for fear he would lose to him in the tournament, and this landed them in combat. Taki attacked Go with a bokken, only to lose and be humiliated in front of his class before storming out and instructing the class to practice unguided.
He later called Go on the telephone and pretended to have calmed down and offered to tell him what had really happened to Go's brother. Go met Taki under a bridge, where he was ambushed by two Guyborgs who subdued Go with an elephant-tranquilizing 50,000 volt electric shock. No sooner did Taki ask what the weapon was, than did they use it on him. Taki awoke in a surgical room, where doctors told him that he would be made into the strongest man in the world. Despite his screams in protest, they then dropped the mysterious Fallah parasite onto his body, and he began to turn into a Mutian.
However, with his new strength he escaped Crown's custody and began to terrorize the facility, destroying many machines including the mechanism that operated the prison cells' remote locks. He then escaped through the ventilation system, and briefly celebrated before three Guyborgs came to take him down. They shot at him with machine guns, but Jerks used his fighting skill to overpower them before blasting one of them in half with his Gokuakusho. He then threw another so hard into a distant tree that it exploded before tossing the other at the feet of Go Kazama, who had been watching the fight, and tried to get him to engage. However, the scientist Takeo Shiroishi came at him with the Guyborg's dropped gun, only for Kazama to attack to defend him. He still refused to fight, and Shiroishi hit Jerks in the leg with the gun, causing the Mutian to take him out with one slap. Kazama then agreed to fight. Jerks quickly overpowered him, but Kazama then transformed into Guyferd and began to dominate the Mutian in battle. He was blasted by Guyferd's Ultimate Star Fist attack, and was blasted back toward the vent system in a fiery explosion.
While dreaming in meditation, Go Kazama saw Jerks and Doggross. In the dream, Go was meditating in a waterfall, being watched by a student of his sensei Jimyo's. Doggross attacked the student, and Go rushed to fight the Mutian, but then his fellow student transformed into Jerks. Go quickly defeated them both, but then they took on the forms of the student and Go's brother Masato. Go then awoke to find himself still beneath the waterfall with his fellow student keeping watch on him while he meditated.
Gokuakusho is a kenpo technique that Jerks learned as a human. After his mutation, Jerks was able to transform it into a ki attack. It is composed of green life energy.
- Ki Binding
Jerks displayed the ability to use his ki as a sort of snare, and was able to keep Kazama trapped in place as long as he maintained focus.
- Guyferd (TV 1996) [2 episodes]
- Guyferd: Crown's Devastating Strategy (1998) - Sega Saturn and Sony PlayStation
During Jerks' escape from Crown Headquarters, he encountered Koichi Hayami, a unique Guyborg, and was defeated before fleeing into the ventilation which led to his escape and death at the hands of Go Kazama.
- Main article: Jerks/Gallery.
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