Updated version of "Street Fighter II: The World Warrior (1991)". In addition to the eight main characters, the four Shadaloo Bosses (Balrog, Vega, Sagat, and M. Bison) are playable and "mirror matches" are possible, meaning players can select the same character.
Street Fighter II': Champion Edition is a competitive fighting game that is an updated version of the original Street Fighter II: The World Warrior. The main changes were the addition of the Grand Masters as playable characters and mirror matches. The fighting techniques of the eight main characters from the original game were also further refined to allow for more balanced competitive play.