Street Fighter Alpha 2, known as Street Fighter Zero 2 (ストリートファイターZERO2) in Japan, is a versus fighting game and a sequel to Street Fighter Alpha: Warriors' Dreams. It was released for the Sega Saturn (among other systems) in 1996 with the same features as its predecessor.
Street Fighter Alpha 2 features all 13 characters from the original Street Fighter Alpha (with M. Bison, Akuma and Dan now serving as regular fighters), plus 5 additional fighters (Sakura, Gen, Rolento, Zangief and Dhalsim). Like in the first game, the final boss varies between fighter and there is also a secret rival character that will challenge your character once certain conditions has been met.
The Saturn version was the only console port at the time to feature Evil Ryu, EX Zangief and EX Dhalsim, the latter two being Zangief and Dhalsim with their move set from Street Fighter II': Champion Edition (meaning they can't air-block or use Super Combos and such), in addition to Original Chun-Li and Shin Akuma, who were in all the other console versions.
Ryu
After defeating Sagat in the first Street Fighter tournament, Ryu goes on another journey when he hears rumours of a martial artist who uses a mysterious power.
Adon
Sagat's former disciple, he believes that his former master has disgraced the Muay Thai style with his defeat at the hands of Ryu.
Chun-Li
A female detective who is pursuing a criminal organization who may had been involved in the disappearance of her father.
Guy
One of the three heroes from Final Fight. Guy is warned by his master, Zeku, of an emerging threat to the world, so he seeks to stop this new mysterious evil.
Ken
Ryu's former training partner, Ken seeks to challenge Ryu once again in order to test his strength and not be outdone by his rival.
Dhalsim
A returning character from Street Fighter II. An Indian yogi who gets involved in the recent events to raise money for his poor village.
Gen
A returning fighter from the original Street Fighter. A Chinese assassin suffering from leukemia who enters the fighting scene once again to find a worthy opponent that can finish him off.
Sakura
A Japanese schoolgirl who idolizes Ryu, whose fighting style she has imitated. Hoping for a match and an autograph with him, she cuts classes and goes on a journey around the world.
Rolento
One of the boss characters from Final Fight. An ex-Mad Gear member who wants to create his own utopic nation through underhanded methods.
Zangief
Another returning character from Street Fighter II. A Soviet wrestler who travels around the world showing the strength of "the Great Motherland".
Charlie (Nash)
A member of the U.S. military who seeks to crack down corruption within the Army's top brass, suspecting that some of its members are under Shadaloo's payroll.
Birdie
A participant from the original Street Fighter who was banned from competing and now works as a bouncer in England. He is interested in joining Shadaloo, he sets out to prove his strength and gain membership.
Rose
A fortune teller who wields Soul Power. She has sensed M. Bison's evil presence and is on a mission to seal his dark power.
Sodom
A surviving member of the Mad Gear Gang from the original Final Fight, he seeks to find strong fighters worthy of joining his revived Mad Gear gang.
Sagat
After being scarred for life by Ryu at the end of the first Street Fighter tournament, Sagat seeks to reclaim his title as the Emperor of Muay Thai.
Akuma (Gouki)
Akuma, much like Ryu, travels the world, searching for opponents worthy enough to match the might of the Satsui no Hadou. He also expresses interest in Ryu's potential.
M. Bison (Vega)
The leader of world criminal organization Shadaloo. His actions involve drug trafficking and arms dealing, among others. As a result, he and his organization have gained a lot of notoriety.
Dan
A gag character of sorts. Dan's father was killed by Sagat after he gouged Sagat's eye out. Dan developed his own style called Saikyo-ryu, and sets out to avenge his father's death.
Original Chun-Li
Unlockable. An alternate version of Chun-Li who wears her outfit from Street Fighter II. Gameplay-wise, the main difference between her and the new Chun-Li is that the input for her Kikoken movie is now a charge command.
Shin Akuma (Shin Gouki)
Unlockable. A more powerful version of Akuma's form and style, tapping into the true potential of the Satsui no Hadou.
Evil Ryu
Unlockable. A what if version of Ryu having subcombed to the power of the Satsui no Hadou.
Versions
Having originally been released a month after the PlayStation version in Japan, the Saturn version includes additional features (namely an Illustrations menu and a corresponding new music track) despite both versions seeing a simultaneous release overseas. Mega Man 8, another Capcom title, would follow the same trend.