Street Fighter IV © 2008 Capcom Company, Limited.
Chronologically set between the Street Fighter II series and the Street Fighter III series, the game features 19 fighters: Abel, Akuma, Balrog, Blanka, Chun Li, C. Viper, Dhalsim, El Fuerte, E. Honda, Gouken, Guile, Ken, M. Bison, Rufus, Ryu, Sagat, Seth, Vega and Zangief.
Akuma is a hidden playable character, as well as a secret opponent. Gouken and Seth are present but not selectable by the player: Gouken is a secret opponent, Seth is the game's standard final boss.
Runs on the "Taito Type X²" hardware.
Street Fighter IV was released in Japan on July 18, 2008.
(feb.12, 2009) 
Microsoft XBOX 360 (feb.12, 2009) Street Fighter IV [Model Q4C-00005] (feb.12, 2009) Street Fighter IV [Model BLJM-60130] (feb.12, 2009) 
(feb.17, 2009) (feb.17, 2009) Street Fighter IV [Model BLUS-30265] 
Microsoft XBOX 360 (feb.19, 2009) (feb.19, 2009)
Microsoft XBOX 360 (feb.20, 2009) (feb.20, 2009) "Street Fighter IV [Model BLES-00481]" (jul.1, 2009) (jul.2, 2009) (jul.2, 2009) Street Fighter IV [Model CPCS-01050] (jul.2, 2009) (jul.3, 2009) (jul.7, 2009) Street Fighter IV [Model 21660] (mar.10, 2010) [ Model 354655665]