Press Start 5x when highlighting Sakura to unlock an additional 6 colors for her. All of her moves remain the same.
This works only when a new challenger enters the game.
Highlight the fighter whose stage you wish to fight on and press Start. Hold Start for 2 seconds. Release Start and move your cursor to the character you wish to fight as and hit a punch/kick button.
For the hidden Australia level highlight, Sagat and press Start. Hold for 2 seconds but do not release, then move to your character.
For the hidden Waterfall level, highlight Nash and press Start. Hold for 2 seconds but do not release, then move to your character.
Press Start once when highlighting Chun-Li to play as her in her classic SF2 outfit. Her fireball command changes to Charge Back, Forward + punch.
This can only be performed on the console versions of SF Zero 2'/SF Alpha 2 Gold.
Enter into any game mode, highlight Gouki (Akuma - US) and press start 5x.
You can play as SSF2 versions of the following characters: Chun-Li, Dhalsim, Ken, Ryu, Sagat, Vega, Zangief. Press Start once (for Dhalsim, Ken, Ryu, Sagat, Vega and Zangief) for their Super Street Fighter 2 versions. Press Start 2x for Chun-Li. Note that all characters have 2 colors (P or K) but Chun-Li, Dhalsim and Zangief have 6 (3P/3K)