X-Men vs. Street Fighter debuted with the 4MB Extended RAM Cartridge in Japan and requires the cartridge to run. Likely as a result of this, the Saturn version of the game was only released in Japan, although for much of 1998, North American and European releases were planned.
The Saturn version of this game was extremely close to getting a European release, being given a price of £49.99 and being packaged with a 4MB Extended RAM Cartridge. It was meant to arrive in March, but Capcom and Sega pulled the plug at the last minute.
The Sega Saturn port of X-Men vs. Street Fighter was the first and to this day most accurate home conversion of the game, with a rival PlayStation release arriving a year later. Unlike X-Men: Children of the Atom where the differences are relatively minor, the PlayStation of version of X-Men vs. Street Fighter strips out features such as tag-team battles, and extends the the one-round battles to a two-out-of-three round setup.
Most notably, the PlayStation version makes significant graphical cutbacks across all elements of the game. Many frames of character and background animation were removed, with characters such as Magneto having almost entirely different (and more rigid) idle poses to compensate for the hardware. Even when animation is not a feature, the PlayStation often uses less detailed assets, and runs with a lower screen resolution at all times.
The Saturn conversion is able to achieve closer parity with the arcade version through its use of the 4MB Extended RAM Cartridge, which is required for the game to run. A side effect of this approach also means that loading times are shorter than on the PlayStation (though still longer than in the arcades, where there is no disc to access).
The 4MB Extended RAM Cartridge also means the X-Men characters have more frames of animation than their counterparts in the Saturn X-Men: Children of the Atom.
Voice Actor: Norman Spencer, Cathal Dodd, Catherine Disher, Lenore Zann, Tony Daniels, Don Francks, Rick Bennett, Lorne Kennedy, Katashi Ishizuka, Tetsuya Iwanaga, Yuko Miyamura, Toshiyuki Morikawa, Susan Hart, Yoshiharu Yamada, Wataru Takagi, Tomomichi Nishimura
Producer: Tetsuya Iijima
General Producer: Noritaka Funamizu (POO)
Special thanks to: Sakomizu, Adviser Akitomo, Takuya Shiraiwa, Matt Taylor, Erik Suzuki, Kinu Nishimura, Jesus R. Bueno, Harumi Yamashita, Dana Moreshead, Alison Stroll, Rita Rokos, Darryl Williams, Mr.Kubozono, Mr.Hirao, Marcello Fortino, David Alex Stinson, Joseph Calamari, Satoshi Ise