All Characters
At the title screen, press the following sequence of buttons: Left, Right, Down, Right, L, L, A, L, L, B, R, A, Up.

All Ism-Plus Modes
At the title screen, press the following sequence of buttons: A, Up, A, L, R, Right, L, Right, A, Down, Right.

Wear Alternate Costume
When you are selecting a character, press L or R rather than A or B to make your character wear their alternate costume.

Go to: Street Fighter Alpha 3 Info Page | nGaming Home Page.