The following are known Action Replay Codes for Mobile Suit Gundam: Federation vs. Zeon on Sony Playstation 2 (PS2). These codes were also known as GameShark Codes and in most cases will work on both devices.

Device Compatibility: Action Replay & GameShark (Version 1 & 2)

Master Code – Must Be On
0E3C7DF2 1853E59E
EE946B66 BCB96B3A

Federation Never Defeated
CE7819C8 BCA99C13
CE7819CA BCA99C13

Federation Always Defeated
CE7819C8 BCA99B83
CE7819CA BCA99B83

Zeon Never Defeated
CE77F318 BCA99C13
CE77F31A BCA99C13

Zeon Always Defeated
CE77F318 BCA99B83
CE77F31A BCA99B83