Facts

Games
Super Street Fighter 2 Turbo
Super Street Fighter 2 X (JPN)

Unlockable Character Dreamcast
Unlockable in the Dreamcast version by fiddling with dipswitches (also available in an even more powerful version sometimes called "Tien Akuma" or "Ten Akuma") and in the Game Boy Advance version by more conventional "time release" methods.
Street Fighter 3: 2nd Impact
CPU Only CPS-3
Selectable exclusively in the Dreamcast version by holding Start on Akuma and pressing any other button.
Ultra Street Fighter 2
Ultra Street Fighter II

Unlockable Character
Unlocked by selecting the following characters and then canceling the selection while highlighting specific color palettes: Ryu Color 1, Ken Color 9, Sagat Color 8, M. Bison Color 7. Then, choose random select whilst holding L + R.
Voice Actor Taketora
Theme
Fighter ID
Fighters
(Recent)
Fighters
(by Name)
Fighters
(by Bio)