Devil Gundam

JDG-009X Devil Gundam is a fictional mobile fighter in the anime television series Mobile Fighter G Gundam. When Mobile Fighter G Gundam was translated to English, the name was changed to "Dark Gundam," due to Sunrise's fears that the Devil name would offend some people

Evolution
After it crash landed, the Ultimate Gundam's systems malfunctioned, and when it begin to repair the damage it had sustained, it started to change. It would evolve into the monstrous Devil Gundam, and it set about accomplishing its goal of healing the world. However, as the Devil Gundam saw it, the problem with the world was humanity, and eliminating mankind became its number one priority. As for Kyoji, he had become integrated with the Devil Gundam and became its core life unit. Major Ulube Ishikawa was soon sent to re-capture the Devil Gundam at the crash site, but the Devil Gundam easily overpowered the mobile suit forces sent after it, leaving Ulube as the only survivor.

For his part in creating the Devil Gundam, Dr. Raizo Kasshu was sentenced to be cryogenically frozen. Domon Kasshu, the younger son of Dr. Kasshu, who was away training to be a master martial artist when the theft of the Ultimate Gundam occurred, was forced to become the official Gundam Fighter for the nation of Neo-Japan. Domon was told that he must both win the Gundam Fight Tournament and recover the Devil Gundam. If Domon was able to do both, his father's sentence would be overturned and he would be unfrozen, but if he failed his father would stay frozen forever. Infuriated at his brother for murdering his mother, stealing the Ultimate Gundam, and leaving his father to an icy prison, Domon set out to Earth at the start of the 13th Gundam Fight with a picture of his brother Kyoji in hand, asking everyone he meets if they have seen him.

Travel to South America
At the urging of Neo-Germany Gundam Fighter Schwartz Bruder, Domon Kasshu went to South America to train in the Guyana Highlands, the very spot where Master Asia had trained him to be a martial artist. However, the Devil Gundam and Master Asia followed Domon and attacked with massive hordes of Death Army variations and Gundam Heads, devastating the Guyana Highlands. Domon's Shining Gundam was able to defeat the Devil Gundam and its hordes, but in the process, it was severely damaged by Master Asia. But when all seemed lost, Domon's partner Rain Mikamura sent Domon the new GF13-017NJII God Gundam which Domon used to defeat Master Asia and flee the Guyana Highlands.

The curse of the Devil Gundam would not be ended that easily. Under the consultations of Master Asia, Wong Yung Fat, the leader of Neo-Hong Kong, had the Devil Gundam's remains transferred to Hong Kong, the location of the Gundam Fight Finals. Wong believed he could use the Devil Gundam to make his rule of the Earth more permanent; however, the Devil Gundam was badly damaged, and worst of all, Kyoji Kasshu was on the brink of death and almost worthless as the Devil Gundam's core life unit. Wong set out to find a way to try and replace Kyoji, and his scientists discovered that a male was not as suited to be the core life unit as a female, the givers of life. Wong schemed to make Allenby Beardsley, the fighter for Neo-Sweden, the Devil Gundam's new core life unit. Master Asia, on the other hand, believed that Domon Kasshu, the most powerful of all of the fighters, should be the new Core Unit.

Final evolution
Domon arrived at the core, where he found Rain, only to find that the Devil Gundam had reached the apex of its evolution. This "core Devil Gundam" had Rain as its pilot and was said to be a manifestation of Rain's desire to keep Domon away. With its vastly superior power and regenerative abilities, the Devil Gundam single handily defeated Domon, but in his moment of weakness, Domon finally admitted his love for Rain. Hearing his cries, Rain was able to break free from the Devil Gundam, rendering it immobile without a core life unit. Domon and Rain combined their power and love into a new attack, the "Sekiha Love Love Tenkyoken," which pierced the core of the Devil Gundam. Without its core, the remainder of the Devil Gundam crumbled into a demonic skeleton, ending the conflict.