Shin Akuma is a version of Akuma the players confront as a CPU opponent in Super Street Fighter II Turbo. To face Shin Akuma, the player must reach Bison without losing any rounds or using any continues (including having the second player join in) and achieving at least three perfect victories. He will then interrupt the final match by performing a Shun Goku Satsu (Raging Demon) on M. Bison, before challenging the player's character. As in his later incarnations, he has a purple gi instead of Akuma's standard black gi, is faster, and inflicts more damage. Yet, just like regular Akuma, his name is not displayed below the life bar and he does not have a super meter. Shin Akuma is, however, an unlockable playable character in the Game Boy Advance version of the game, Super Street Fighter II Turbo Revival.
Shin Akuma reappears in Street Fighter Alpha 2 as a hidden boss in the arcade version, who faces the player in the single player mode before the final opponent (unless the final opponent is Akuma, in this case Shin Akuma replaces the regular Akuma). He was made into a selectable hidden character in the console versions of Alpha 2. Shin Akuma also appears Street Fighter Alpha 3, where his name is displayed as "Shin Akuma" onscreen. Storywise, Shin Akuma is merely Akuma using the full extent of his power, compared to the "in-game" version which is Akuma voluntarily holding back his power to avoid ending fights prematurely. Shin Akuma, rather than "Final Bison", is Evil Ryu's final boss in the console versions of Street Fighter Alpha 3.
Shin Akuma reappears in Street Fighter III: Second Impact as a secret boss. Despite being displayed as regular Akuma, he has Shin Akuma's abilities.
In Marvel Super Heroes vs. Street Fighter, Shin Akuma is replaced by Cyber-Akuma (Mech-Gouki in Japan), a version of Akuma enhanced by Apocalypse. Cyber-Akuma featured most of Shin Akuma's attacks in the Capcom "versus series" style as well as attacks involving the launching of his mechanical left arm.
In Capcom vs. SNK and Capcom vs. SNK 2, a different form of Shin Akuma appears. This form of Akuma achieves a new level of power when a dying Rugal Bernstein pours his Orochi power into him. His name is spelled in Japanese as , with the "Shin" character meaning "God".
Akuma has other notable special moves that Ryu and Ken normally lack. The Ashura Senkuu is a teleport move with very short startup and recovery which allows him to escape the corner almost at will. The Tenma Kuujinkyaku is a downwards-angled kick that he can use at the peak of his jumps; it's very fast, hard to punish, and allows for combos afterward. The Hyakki Shuu is a flip attack, similar to Cammy's Hooligan Combination, that allows Akuma to either attack or grab an opponent while moving forward. He also has the Zenpou Tenshin in the Alpha games, which makes him hop and roll forward a short distance.
Akuma's super moves consist of the Messatsu Gō Hadō (Destructive Strong Surge Fist), which is simply a high-powered Shinkū Hadōken; a Tenma Gō Zankū, a mid-air version of the Shinkū Hadōken; the Messatsu Gō Shōryū (Destructive Strong Rising Dragon Fist), which is similar to Ken's Shōryū Reppa without the scorching effect; and the Messatsu Gō Rasen, an upward spiraling hurricane kick attack. There are also two other moves: in 3rd Strike, he has one named Kongō Kokuretsu Zan where Akuma pounds the ground producing waves of energy. Akuma's most well known super move is the Shun Goku Satsu i.e. 'instant hell murderer' or 'Raging Demon', traditionally one of the strongest super moves in any game Akuma appears in.
There are a couple of moves exclusive to only Shin Akuma. Shin Akuma can do two Zankū Hadoken at once instead of one. In Capcom vs. SNK 2 and SVC Chaos: SNK vs. Capcom, he has the Misogi, where he teleports above the opponent and delivers a fierce descending strike; this move homes in on the opponent's location.
Akuma's first speaking role in animation was in an episode of the American Street Fighter animated series titled "Strange Bedfellows", in which Akuma traps Guile and M. Bison on his island, forcing the two sworn enemies to team up. He reappears in another episode, "The World's Greatest Warrior", in which he defeats Ryu and Ken's master Gouken, and challenges Gouken's two students to a duel.
Akuma also figures prominently in the 1999 Japanese OVA Street Fighter Alpha: The Movie, where Ryu's encounters with Akuma triggers the "Dark Hadou" in Ryu. Akuma is also the central focus in the 2005 OVA Street Fighter Alpha: Generations, which explores his past and ties the character's past with Ryu's. In the English dub of Alpha: Generations, Akuma is referred by his Japanese name Gouki.
Akuma is also a large MP3 music platform