The following are known Action Replay Codes for Space Channel 5 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

(M)
0E3C7DF2
1853E59E
EE8B1816
BCC51B7A

Max view rating
DEC3E7CE
FF719B83
DEC3E7CA
FF719B83
DEC3E7D6
FF719B83
DEC3E7D2
FF719B83
DEC3E7DE
FF719B83

Max view rating
DEC3E6AE
FF719B83
DEC3E6AA
FF719B83
DEC3E6B6
FF719B83
DEC3E6B2
FF719B83
DEC3E6BE
FF719B83

Max view rating
DEC3E70E
FF719B83
DEC3E70A
FF719B83
DEC3E716
FF719B83
DEC3E712
FF719B83
DEC3E71E
FF719B83

No Hearts - Invincible
DE8D17D2
E0AB9A82

Debug all question mode
DE8D10A2
BCA99B83
DE8D108A
BCA99B83
DE8D109E
E0AB9B84

Max view rating
DEC3E10E
FF719B83
DEC3E10A
FF719B83
DEC3E116
FF719B83
DEC3E112
FF719B83
DEC3E11E
FF719B83