Device Compatibility: Action Replay & GameShark
| Single Player Codes | |
| Infinite Health | 81163930 42C8 |
| Infinite Armor | 81163944 42C8 |
| Infinite Bio Suit | 81163980 42C8 |
| Have Weapon Modifier | 801639EB 00?? |
| Infinite Ammo Shotgun & Double Barrel Shotgun | 81163A2C 03E7 |
| Infinite Ammo Nailgun & Super Nailgun | 81163A2E 03E7 |
| Infinite Ammo Grenade Launcher & Rocket Launcher | 81163A30 03E7 |
| Infinite Ammo Thunderbolt | 81163A32 03E7 |
| Have All Keys | 801639E9 000F |
| Have Gold Key | 801639E9 0004 |
| Have Silver Key | 801639E9 0002 |
| Open Debug Menu in Options | 8006C4C2 0001 |
| Cheat Enabled Modifier | 80086EB2 ???? |
| Mutli-Player Codes | |
| Infinite Health P1 | 81166290 42C8 |
| Infinite Armor P1 | 811662A4 42C8 |
| Infinite Bio Suit P1 | 811662E0 42C8 |
| Have Weapon Modifier P1 | 8016634B 00?? |
| Infinite Ammo Shotgun & Double Barrel Shotgun P1 | 8116638C 03E7 |
| Infinite Ammo Nailgun & Super Nailgun P1 | 8116638E 03E7 |
| Infinite Ammo Grenade Launcher & Rocket Launcher P1 | 81166390 03E7 |
| Infinite Ammo Thunderbolt P1 | 81166392 03E7 |
| Infinite Health P2 | 81166560 42C8 |
| Infinite Armor P2 | 81166574 42C8 |
| Infinite Bio Suit P2 | 811665B0 42C8 |
| Have Weapon Modifier P2 | 8016661B 00?? |
| Infinite Ammo Shotgun & Double Barrel Shotgun P2 | 8116665C 03E7 |
| Infinite Ammo Nailgun & Super Nailgun P2 | 8116665E 03E7 |
| Infinite Ammo Grenade Launcher & Rocket Launcher P2 | 81166660 03E7 |
| Infinite Ammo Thunderbolt P2 | 81166662 03E7 |
| Quantity Digits to Accompany Have Weapon Modifier Code | |
| 00 – Axe 01 – Shotgun 02 – Double Barrel Shotgun 04 – Nailgun 08 – Super Nailgun 10 – Grenade Launcher 20 – Rocket Launcher 40 – Thunderbolt 7F – All Weapons | |
| Quantity Digits to Accompany Cheat Enable Modifier Code | |
| 0002 – Target Off 0004 – God Mode On 0008 – Weapons On |