The following are known Action Replay Codes for Power Stone 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

Player 1 infinite health
CE1BFE5A
000000EE

Player 2 infinite Health
695B7284
000000EE

Infinite Time
B672634F
00000063

Plyr 1 can't use pstone power
EC070136
00000000

Plyr 2 can't use pstone power
95E81332
00000000