The following are known Action Replay Codes for The Granstream Saga on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

All Shields
801c9144ffff

All Armor
801c9148ffff

All Weapons
801c9140ffff

Infinite GP
801c915c869f
801c915e0001

Infinite Health In Battle
800c0f04001e