Street Fighter II': Champion Edition (ストリートファイターIIダッシュ -CHAMPION EDITION-?) is a competitive fighting game released for the arcades by Capcom in 1992. It was the first of several updated versions of the original Street Fighter II: The World Warrior. The main changes consisted of the addition of the Grand Masters (the final four computer-controlled opponents in the single-player mode) as playable characters and mirror matches (same character vs. matches). The fighting techniques of the eight main characters from the original game were also further refined to allowed for more balanced competitive play. Champion Edition was followed by Street Fighter II' Turbo: Hyper Fighting, released several months later.

Super Street Fighter II: The New Challengers (スーパーストリートファイターⅡ -The New Challengers-?) is a head-to-head fighting game produced by Capcom originally released as a coin-operated arcade game in 1993. It is the fourth game in the Street Fighter II sub-series of Street Fighter games, following Street Fighter II: Hyper Fighting. In addition to refining and balancing the existing character roster from the previous installments, Super Street Fighter II also introduced four new characters. It was also the first game to be developed on Capcom's CP System II hardware, which permitted more sophisticated graphics and audio over the original CP System hardware, used by the previous versions of Street Fighter II. Super Street Fighter II was followed by Super Street Fighter II Turbo, a fifth version of Street Fighter II released during the following year 1994, which further refined the balance between characters and introduced additional new features.