The following are known Action Replay Codes for Street Fighter Alpha 3 on SEGA Dreamcast (Dreamcast). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark

Open All Options
8017E022 FFFF

Unlock PocketStation compatiblility
801941FA 0005

P1 - Infinite Health
801942D8 0090

INF ENERGY P2
A5C3519C
00000090

P2 - One hit kill
D0194720 0000
80194720 0001

P1 - No Guard Bar
80194488 0000

P1 - Maximum Power Bar
801943CA 0090

INF EXP WORLD TOUR
492ADFE3
05F5E0FF

P2 - Maximum Power Bar
80194812 0090

P2 - Infinite Health
80194720 0090

P2 - Maximum Guard Bar
801948D0 0050

P1 - Maxumum Guard Bar
80194488 0050

QUICK KO ON P2
A5C0519C
C0705033
A5C3519C
00000001

P1 - One hit kill
D01942D8 0090
801942D8 0001

P1 - No Power Bar
801943CA 0000

Max Experience in World Tour Mode
80194128 967F
8019412A 0098

INF A-ISM P2
821B8D0D
00000090

QUICK KO ON P1
7DE6D30C
C0705033
7DE5D30C
00000001

INF A-ISM P1
6A636B4F
00000090

INF ENERGY P1
7DE5D30C
00000090