Super Street Fighter II Turbo, released in Japan as Super Street Fighter II X: Grand Master Challenge (スーパーストリートファイターII X -Grand Master Challenge-), is a competitive fighting game released for the arcades by Capcom in 1994. It is the fifth installment in the Street Fighter II sub-series of Street Fighter games, following Super Street Fighter II: The New Challengers. Like its predecessor, it ran on the CP System II hardware. Super Turbo introduced several new gameplay mechanics not present in previous versions of Street Fighter II, including the addition of Super Combos and air combos. It also introduced the secret character Akuma, who would go on to become a recurring character in later Street Fighter installments and other Capcom fighting games. Super Turbo was originally ported to the 3DO Interactive Multiplayer, followed by the PlayStation and Sega Saturn (under the title of Super Street Fighter II Turbo: The Ultimate Championship) as part of the Street Fighter Collection, and for the Dreamcast in Japan under the title of Super Street Fighter II X for Matching Service. A remake of the game was released for the PlayStation 3 and Xbox 360 titled Super Street Fighter II Turbo HD Remix.

X-Men vs. Street Fighter (エックスメンＶＳ．ストリートファイター) is a fighting game originally released as a coin-operated arcade game in 1996. It is Capcom's third fighting game to feature Marvel Comics characters and the first game to match them against their own, with characters from Marvel's X-Men franchise being matched against the cast from the Street Fighter series.It was the first game to blend a tag team style of combat with the Street Fighter gameplay, as well as incorporating elements from Capcom's previous Marvel-themed fighting games, X-Men: Children of the Atom and Marvel Super Heroes. It was ported to the Sega Saturn in 1997 and PlayStation in 1998. However, the tag team feature was omitted from the PlayStation version due to memory limitations, while the Saturn version was only released in Japan.