Steel Harbinger Full health
Pause the game and press L2(2), R2(2), Up, L1, Up, R1. If you entered the code correctly, you will hear a beep. Note: This code may only be enabled five times during the entire game.
All weapons
Pause the game and press X, Triangle, R2, Triangle, X, L2, R2, Down, L2, Square, Right. If you entered the code correctly, you will hear a beep. Note: This code may only be enabled three times during the entire game.
Full M-16 ammunition
Pause the game and press Down, Square(3), Circle(2), Up, Right. If you entered the code correctly, you will hear a beep. The M-16 will now have 999 rounds of ammunition.
Full rocket launcher ammunition
Pause the game and press Left(2), L1, R2, Square, R1, Right(2). If you entered the code correctly, you will hear a beep. Note: This code may only be enabled five times during the entire game.
Shield
Pause the game and press Triangle, X, Triangle, X, Triangle, X Square, Circle, Square, Circle, Up, R1. If you entered the code correctly, you will hear a beep. Note: This code may only be enabled three times during the entire game.
Arctic card
Pause the game and press Up, Right, Triangle, Circle, Down, Left, X, Square. If you entered the code correctly, you will hear a beep. Note: This code may only be enabled once per level.
Net node card
Pause the game and press Left, Triangle. L2, Right, R1, Circle, R1, Down. If you entered the code correctly, you will hear a beep. Note: This code may only be enabled three times during the entire game.
Teleport credit
Pause the game and press L1, R1(2), L2, R2, L2, Circle, Triangle. If you entered the code correctly, you will hear a beep. Note: This code may only be enabled 100 times per level.
View credits
At the main menu press Square(4), Circle(3), Square(2).
View FMV sequences
At the main menu, press L2(2), R2(2), L1, R1, Square, Circle, Up, Down.
Play single level codes
Enter one of the following codes at the main menu to play the corresponding level:
| Level | Code |
| Los Angeles | Press Circle (2), R2(2) , Left , Right , Up , L2 (2), Triangle |
| Los Angeles 7 | Press Circle (2), L2 (2), Left , Right , Up , R2 (2), Triangle |
| Las Vegas | Press Square (2), L2 , L1 , Up , Down , R1 , R2 , Left , Right |
| Las Vegas 7 | Press Square (2), L2 , L1 , Up , Down , R1 , R2 , Right , Left |
| San Francisco | Press Circle , Square , L2 , R1 , Triangle , L1 , R2 , Down , Up , Left |
| Houston | Press L2 , L1 , R1 , R2 , Circle , Left (2), Triangle , Right (2) |
| Washington | Press Circle (2), L1 , R1 , L2 , R2 , Left , Right , Triangle , Square |
| Florida | Press L1 , R1 , Square , Circle , R2 , L2 , Up , Triangle , Down (2) |
| Nebraska | Press Square (2), Left (2), Square , Circle (2), Up (2), Square |
| Moonbase | Press R1 (2), L2 , R1 , Square , Triangle , Left , Right , R2 |
| Joker Command | D0099A88 ???? |
| Infinite Health | 8009A07C 03E8 |
| Infinite Machine Gun Ammo | 80124576 00C8 |
| Have Heatseeker | 80124578 0001 |
| Infinite Heatseeker Ammo | 8012457A 00C8 |
| Have Peterson Rifle | 8012457C 0101 |
| Infinite Peterson Ammo | 8012457E 00C8 |
| Have Plasma Rifle | 80124580 0201 |
| Infinite Plasma Ammo | 80124582 00C8 |
| Have Rocket Launcher | 80124584 0401 |
| Infinite Rocket Launcher Ammo | 80124586 00C8 |
| Have Gx-10 Grenade Launcher | 80124588 0501 |
| Infinite Gx-10 Grenade Launcher Ammo | 8012458A 00C8 |
| Have Flare Gun | 8012458C 0601 |
| Infinite Flare Gun Ammo | 8012458E 00C8 |
| Have Shockwave Pulse Grenade | 80124590 0701 |
| Infinite Shockwave Pulse Grenade Ammo | 80124592 00C8 |
| Have Icarus Beam | 80124594 0801 |
| Infinite Icarus Ammo | 80124596 00C8 |