Street Fighter II/Akuma

Akuma originally appeared in Super Street Fighter II Turbo as a secret character and hidden boss. He has red hair, wears prayer beads around his neck, and wears a black gi (occasionally displayed as blue in artwork). The kanji 'ten' (天) - meaning "sky", "heaven", or "providence" - can be seen on his back when it appears during certain win animations. Capcom had stated that the symbol on his back meant "immortal" for Akuma even though there are many different translations.

Akuma has the same moves as Ryu and Ken, only much faster and more damaging. To compensate for these advantages, Akuma is usually saddled with extremely low stamina. Unlike every other world warrior, Akuma has no Super Meter in Super Street Fighter II Turbo, and therefore, no access to super moves.

Capcom USA initially claimed Akuma was possessed by a demon, but this was a fabrication of the American branch, and is not series canon. The character's name change from Gouki to Akuma (the Japanese and American names, respectively) reflects Capcom USA's attempt to accentuate the demonic nature (the word Akuma (悪魔, Akuma?) means demon in Japanese).

Background
Akuma and his brother Gouken were students of Goutetsu. Goutetsu taught a life-threatening martial art called Ansatsuken (Assassin Fist), which incorporates elements of karate, judo, and kempo. He also taught Shun Goku Satsu (literally Instant Hell Murder or The Raging Demon), a death technique which, although incredibly powerful, puts the user in considerable danger.

As the brothers progressed under Goutetsu's tutelage, a dispute arose on the true nature of Ansatsuken and the path to master it. Gouken, unable to accept the violent nature of Ansatsuken, left Goutetsu to begin his own dojo. Akuma continued Goutetsu's teachings and vowed to use Ansatsuken as it was intended.

In order to learn Shun Goku Satsu, Akuma embraced the principle of Satsui no Hadou or (The Surge of the Intent to Murder/Murderous Intent). Through Satsui no Hadou, 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 to train alone on the isles of Samoa.

His return marked the end for Goutetsu - Akuma demonstrated his strength by killing his former master with Shun Goku Satsu. Goutetsu fell with an inner joy, realizing his pupil was attempting to master Ansatsuken. Akuma removed the beaded necklace from Goutetsu's neck and placed it around his own. The following day Akuma challenged and fought his brother. With Gouken gaining the upper hand, Akuma was eventually struck down. Akuma requested death in defeat, however his brother had no intention to. Akuma, sensing weakness, mocked Gouken and struck with Shun Goku Satsu. The dojo was filled with a burst of white light and Gouken was killed. Ken saw the flash as he was returning from the U.S. Martial Arts tournament. Rushing to the dojo to find it in shambles and his master dead, an enraged Ken ran into the surrounding woods searching for the killer. Akuma easily defeated Ken and disappeared. Gouken's other student Ryu soon learned of his master's death and began to search for Akuma…

Akuma fights only to test his strength and his opponent's. This means that he will only fight opponents that will provide a challenge, hence his refusal to fight unworthy challengers under any circumstances. Akuma will only kill opponents who are as strong as he, which is why he stopped his fight with Gen after realizing that he was ill. While Akuma killed his brother and his teacher, he did so in the confines of the code of the warrior, where the field of battle does not distinguish between friend and foe. Akuma believes he committed no transgression whatsoever. Also, with the exception of Gouken and Goutetsu, Akuma usually only fights those who challenge him instead of picking fights.