|Japanese name:||豪鬼, アクマ|
As the brothers progressed under Goutetsu's tutelage, a dispute arose on the true nature of their fighting style and the path to master it. Gouken, unable to accept the violent nature and the Satsui no Hadou of his fighting style, left Goutetsu to begin his own dojo, however Goutetsu did not stop his student Gouken from leaving and even allowed him build his own dojo. Akuma continued Goutetsu's teachings and vowed to use their fighting style as it was intended.
In order to learn Shun Goku Satsu, Akuma embraced the principle of Satsui no Hadō, the "Surge of the Intent to Kill/Killing Intent". Through Satsui no Hadō, Akuma was forced to give up any compassion he held towards other human beings. In addition, Akuma realized his limits as a martial artist could be expanded, and left Goutetsu's guidance of enlightenment to train alone to gain more power; however, due to embracing the Satsui no Hadou to his fullest extent, he developed a lust to fight to the death, unlike Goutetsu, who had been able to use the Satsui no Hadou without giving in to its dark side and did not constantly use it to its fullest extent.
After coming back from his island, Akuma went back to Goutetsu, and fought and killed him with the Shun Goku Satsu. Akuma, believing that he was the true master of the Art, took the prayer beads of his dead master and placed it on his neck. When Gouken went to visit his master to see how he was doing, he only found his body lifeless and saw his brother, now no longer looking human. Gouken, shocked to see that his younger brother took the life of their master, berated Akuma, who said nothing and left for the woods.
Many years later, Akuma fought Gouken, while the then-young duo of Ryu and Ken watched. Akuma told Gouken that he was not strong enough to face him without giving in the killing intent; Gouken retorted, saying the art was much more then just death and destruction, accusing Akuma of dishonoring their master's name. Akuma told his brother that Goutetsu did not truly understand the art and was a fool for not using the Satsui no Hadou to its fullest extent. The fight continued, and Gouken won. Akuma told his brother to kill him, but Gouken had no intention of murdering his own kin, prompting Akuma to call him weak for sparing the life of a strong opponent and declare that he would return.
A couple years later, Akuma came back to Gouken's dojo and fought him in battle, using the Shun Goku Satsu on him. Akuma believed him dead, not knowing that Gouken had somehow lived through the attack by emptying his soul, and was only in a coma. Ken saw the flash of the attack while running to the dojo, but arrived only to find Gouken on the floor. Knowing who was behind this, Ken confronted Akuma in the woods and fought him, only to be defeated. After defeating Ken, Akuma disappeared without a trace.
Akuma begins to search the globe looking for worthy fighters to challenge. Secluding himself in the shadows, he watches small tournaments and street fights, desperately seeking someone who might be able to match his strength. He is eventually challenged by a man named Gen. Gen fights a vicious battle, even surviving the Shun Goku Satsu by emptying his soul in time. Just as Akuma begins to wonder whether this man is the worthy opponent he's searching for, he begins to sense not all is as it seems when Gen's mouth begins to bleed, Akuma's suspicions are confirmed: his opponent is sick, and the fight is not fair. After being knocked to the ground, Gen tells Akuma to kill him. Not wanting to carry the fight on any longer, Akuma leaves, infuriating Gen. After the fight, Akuma becomes obsessed with Ryu, hoping to awaken the Satsui no Hadou within his prey.
While waiting for Ryu to embrace the Satsui no Hado, Akuma wanders the globe in search of worthy opposition. He is confronted by Adon, a muay thai practitioner, who wishes to establish his fighting style as supreme. Akuma easily wins but, instead of killing Adon, he just leaves apparently deeming his defeated foe as an unworthy. Sometime later, Akuma is challenged by M. Bison. Akuma, unable to sense Bison's massive chi (which was at the time channeled through Psycho Drive), attacks convinced in easy victory. He employs Shun Goku Satsu, technique which tears the very fabric of victim's soul. Bison, having no soul, withstands this move without so much as flinching and counters. Unfamiliar with opponent's true strength, Akuma is caught off guard and ends up being easily overpowered by Bison who mocks him before leaving. Canonicity of this one is in question, though. Akuma then encounters Gen once more and fights a second battle (the results of the fight are unknown). However, unbeknownst to Akuma, Ryu rejects the Satsui no Hadō while battling the Shadaloo leader, M. Bison, declaring that a true warrior does not rely on violent intent.
During the events of Seth's tournament, he continues his training, and senses the Satsui no Hadou reemerging within Ryu. Immediately, he sets off to find Ryu and help him realize this power so he can try to kill him in battle. Like the other tournaments, Akuma does not officially enter, but stays in the shadows. Eventually, he finds an unconscious Ryu in the care of his brother Gouken. Akuma noticed that his brother has perfected the Mu No Ken (Empty Fist). The two brothers then proceed to fight, with Ryu being the prize. Both survived their fight, and Ryu was saved by Gouken. Akuma continued his training and his search for a worthy opponent to match his own.
As with the second World Warrior tournament, Akuma did not enter the third World Warrior tournament, but once more lurked in the shadows. He even successfully pulled off a Shun Goku Satsu on the tournament sponsor Gill, although he left without realizing that Gill had resurrected himself. Over this time-span, Akuma had trained relentlessly until finally harnessing his power and learning several new techniques, some that were meant to create tidal waves, some described as strong enough to split Uluru (Ayers Rock) in half, and one that could kill an opponent with a single strike. Akuma's self-taught technique is called the Kongō Kokuretsu Zan, in which Akuma channels all his power into one hand and smashes it into the ground, creating a vortex of energy upward around him. It is supposedly this technique that was used to destroy his original training ground.
Akuma continued to develop his now-incredible fighting skill, and even fought with Oro in a simple, inconclusive battle, with each other sensing the other's massive chi and testing their powers. Though mutually impressed by each others power, both men expressed some contempt for the other on a personal basis. Akuma has now demonstrated the ability to remain underwater under massive pressure for extended periods of time, and has even managed to destroy a naval submarine with a technique that he has dubbed Tenshō Kaireki Jin.