Akuma

Akuma is a character from the Street Fighter seires. He made his debut in Super Street Fighter II Turbo as a secret and incredibly powerful boss character. Akuma is Gouken's brother, and a former fellow, as the two were taught by the same master. Akuma, however, pursued the path of the Satsui no Hado, becoming a almost demonic figure. Akuma seeks to completely master the Satsui no Hado, and for such he search for strong opponent to which he can have a fight to the death. He eventually learned that Ryu has a latent Satsui no Hado ability, so he tries to make Ryu follow it's path, though Ryu, knowing it is an evil power, struggles to get rid of it. Akuma has a twisted moral code, as he himself does not challenge anyone and refuses to fight with anyone he perceives as being weak, since all of his fights are intendet to be fights to the death.

Akuma is known to have an aggressive style of fighting. His combos are easily chained and with a skilled player can deplete a foe's life very quickly. Like many of his shoto companions, very many characters are edited from his sprite. Akuma has aggressive moves like the Zankuu Hadoken, Hyaki Goujin, and his most powerful and famous move, the Shun Goku Satsu.

He also has two alter-egos of himself. Shin Akuma (or Shin Gouki) and Oni.

GM's Gouki (Third Strike)
This Akuma is closely accurate to the original game. It also has a Shin mode accessed by pressing the start button and any attack buttons. He has two secret super arts: Shun Goku Satsu and Kongou Kokuretsu Zan.

Vyn's Gouki (SMvC)
Vyn's version has MvC2 effects but the hitsparks are from CvS. The gameplay is custom-made, and this version of Akuma can do air combos.