Unlockables!!! - Street Fighter Alpha 3
Mar 25th 2004, ID#1987 Unlockables!!!
Press L or R when choosing a character to access their alternative costume.
Put the following at the title screen.
Left, Right, Down, Right, L, L, A, L, L, B, R, A, Up.
All Ism-Plus Modes:
A, Up, A, L, R, Right, L, Right, A, Down, Right.
All modes(Mazi, Saikyou, Etc.):
L, Right, A, R, Up, L, Right, B, A, Up, Right, Down, Right.
I hope these help.