The following are known Action Replay Codes for Spawn: In the Demon’s Hand 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

Inf Second Ammo P1
D86891DD
00000014

Inf Primary Ammo P1
E6470A95
00000006

Inf Health P1
43620AB8
000001F4

Max Powers P1
7735C68D
00000005
AEEB441E
00000505