At the "Tech Q & A" screen of Disc 1, press Square, Triangle, Circle.
At the "Behind the Scenes" screen of Disc 1, hold L1 + L2 + R1 + R2.
At the "Code Book" screen of Disc 1, press Triangle(3).
At the "Vault" screen of Disc 1 press, Circle, Triangle, Square.
At the "Download Station" screen of Disc 1, highlight the "Options Menu" selection. Then, hold R1 + L1 + R2 + L2 (in that sequence) and press Square.
At the main menu of Disc 1, press Square, Triangle, Circle, X.
At the "Coming Soon" screen of Disc 2, press Square, Triangle, Circle, Triangle, Square.
At the "Coming Soon" screen of Disc 2, hold Square + Triangle + Circle, then press X.
At the "In Stores Now" screen of Disc 2, hold L1 + R1 + L2 + R2 (in that order), release the buttons, then press L1 + L2 + R1 + R2.
At the main menu of Disc 2, hold Square + Triangle + Circle and press L1.
If you line up the first four volumes of the Underground series CD packages spines, you will see the following code: Press Circle, Triangle, Square, Triangle(2), Circle(3) to reveal a secret URL (http://www.playstation.com/hiddenprize), username (underground), and password (insider). The hidden prize...well go there and find out!
| Cool Boarders (Disk 1) | |
| Infinite Time & Stop Lap Timer | 801FFED0 0000 |
| Dynasty Warriors (Disk 1) | |
| Infinite Energy P1 | 800B12F8 00C8 |
| 25% Energy P1 | D00B12F8 00C8 800B12F8 0032 |
| 50% Energy P1 | D00B12F8 00C8 800B12F8 0064 |
| 75% Energy P1 | D00B12F8 00C8 800B12F8 0096 |
| No Energy P1 | 800B12F8 0000 |
| 1-Hit Death P1 | D00B12F8 00C8 800B12F8 0001 |
| Infinite Energy P2 | 800B1CC0 00C8 |
| 25% Energy P2 | D00B1CC0 00C8 800B1CC0 0032 |
| 50% Energy P2 | D00B1CC0 00C8 800B1CC0 0064 |
| 75% Energy P2 | D00B1CC0 00C8 800B1CC0 0096 |
| No Energy P2 | 800B1CC0 0000 |
| 1-Hit Death P2 | D00B1CC0 00C8 800B1CC0 0001 |
| Jet Moto (Disk 1) | |
| Infinite Turbo P1 (1-Player Mode) | 80163818 0004 |
| Infinite Turbo P1 (2-Player Mode) | 80164C84 0004 |
| Infinite Turbo P2 (2-Player Mode) | 80163818 0004 |
| Time Always 0:00.0 (Both Modes) | 80173E28 0000 |
| NFL Gameday '97 (Disk 1) | |
| Infinite Time-Outs Home Team | 800C9224 0003 |
| No Time-Outs Home Team | 800C9224 0000 |
| Infinite Time-Outs Away Team | 800C9226 0003 |
| No Time-Outs Away Team | 800C9226 0000 |
| Score Modifier Home Team | 800C921C 00?? |
| Score Modifier Away Team | 800C9220 00?? |
| Infinite Time | 800C930A 0009 |
| Twisted Metal 2 (Disk 1) | |
| Infinite Specials P1 | 80186BFA 0063 |
| Infinite Fire Missiles P1 | 80186BFC 0063 |
| Infinite Homing Missiles P1 | 80186BFE 0063 |
| Infinite Remote Bombs P1 | 80186C00 0063 |
| Infinite Power Missiles P1 | 80186C02 0063 |
| Infinite Napalms P1 | 80186C04 0063 |
| Infinite Richochet Bombs P1 | 80186C06 0063 |
| Infinite Lightning P1 | 80186C08 0063 |
| Infinite Energy P1 | 80186614 0078 |
| No Energy P1 | 80186614 0000 |
| 1-Hit Death P1 | D0186614 0078 80186614 0001 |
| 25% Energy P1 | D0186614 0078 80186614 001E |
| 50% Energy P1 | D0186614 0078 80186614 003C |
| 75% Energy P1 | D0186614 0078 80186614 005A |
| Infinite Turbo P1 | 80186C1E 00C8 |
| No Turbo P1 | 80186C1E 0000 |
| Infinite Advanced Attack Energy Bar P1 | 80186C1C 0400 |
| No Advanced Attack Energy Bar P1 | 80186C1C 0000 |
| Mega Rapid Fire P1 | 80186C12 0000 |
| Infinite Specials P2 | 8018740E 0063 |
| Infinite Fire Missiles P2 | 80187410 0063 |
| Infinite Homing Missiles P2 | 80187412 0063 |
| Infinite Remote Bombs P2 | 80187414 0063 |
| Infinite Power Missiles P2 | 80187416 0063 |
| Infinite Napalms P2 | 80187418 0063 |
| Infinite Richochet Bombs P2 | 8018741A 0063 |
| Infinite Lightning P2 | 8018741C 0063 |
| Infinite Energy P2 | 80186E28 0078 |
| No Energy P2 | 80186E28 0000 |
| 1-Hit Death P2 | D0186E28 0078 80186E28 0001 |
| 25% Energy P2 | D0186E28 0078 80186E28 001E |
| 50% Energy P2 | D0186E28 0078 80186E28 003C |
| 75% Energy P2 | D0186E28 0078 80186E28 005A |
| Infinite Turbo P2 | 80187432 00C8 |
| No Turbo P1 | 80187432 0000 |
| Infinite Advanced Attack Energy Bar P2 | 80187430 0400 |
| No Advanced Attack Energy Bar P2 | 80187430 0000 |
| Mega Rapid Fire P2 | 80187426 0000 |
| Infinite Everything P1 (Except Energy and Lives) | 80186BEE 0F0F |
| Infinite Everything P2 (Except Energy and Lives) | 80187402 0F0F |
| Carnage Heart (Disk 2) | |
| Infinite Money | 800D2048 A120 800D204A 0007 |
| Mech Warrior 2 (Disk 2) | |
| Gun Always Cool | 800D8880 0000 800D8884 0000 |
| Infinite Jump Jets | 800D8C60 000A |
| No Jump Jets | 800D8C60 0000 |
| Jumps Jets Always Activated (Always in Air) | 800D8C5C 0001 |
| Cant Use Jump Jets | 800D8C5C 0000 |
| Infinite Weapon 1 | 800D88F6 0064 |
| Weapon 1 Modifier | 800D88FC ???? |
| Weapon 1 Rapid Fire | 800D88F8 0001 |
| Weapon 1 Status | 300D88F4 00?? |
| Infinite Weapon 2 | 800D8912 03E7 |
| Weapon 2 Modifier | 800D8918 ???? |
| Weapon 2 Rapid Fire | 800D8914 0001 |
| Weapon 2 Status | 300D8910 00?? |
| Infinite Weapon 3 | 800D892E 03E7 |
| Weapon 3 Modifier | 800D8934 ???? |
| Weapon 3 Rapid Fire | 800D8930 0001 |
| Weapon 3 Status | 300D892C 00?? |
| Infinite Weapon 4 | 800D894A 03E7 |
| Weapon 4 Modifier | 800D8950 ???? |
| Weapon 4 Rapid Fire | 800D894C 0001 |
| Weapon 4 Status | 300D8948 00?? |
| Infinite Weapon 5 | 800D8966 03E7 |
| Weapon 5 Modifier | 800D896C ???? |
| Weapon 5 Rapid Fire | 800D8968 0001 |
| Weapon 5 Status | 300D8964 00?? |
| Infinite Weapon 6 | 800D8982 03E7 |
| Weapon 6 Modifier | 800D8988 ???? |
| Weapon 6 Rapid Fire | 800D8984 0001 |
| Weapon 6 Status | 300D8980 00?? |
| Infinite Weapon 7 | 800D899E 03E7 |
| Weapon 7 Modifier | 800D89A4 ???? |
| Weapon 7 Rapid Fire | 800D89A0 0001 |
| Weapon 7 Status | 300D899C 00?? |
| Infinite Weapon 8 | 800D89BA 03E7 |
| Weapon 8 Modifier | 800D89C0 ???? |
| Weapon 8 Rapid Fire | 800D89BC 0001 |
| Weapon 8 Status | 300D89B8 00?? |
| Rage Racer (Disk 2) | |
| Time Always 10'00 | 800A1CB4 4650 |
| Always Place 1st | 800A5550 0001 |
| Spider (Disk 2) | |
| Infinite Energy | 801C6E0E 0002 |
| Infinite Lives | 301C6E0C 0003 |
| Always Have 99 DNA | 301C6E0D 0063 |
| Tomb Raider (Disk 2) | |
| Infinite Energy | 801840FA 03E7 |
| Skin Color Modifier | 80184102 ???? |
| Moon Jump | 801840F8 FFC0 |
| Jumps Go Further | 801840F6 0040 |
| Jumps Go Much Further | 801840F6 0080 |
| Jumps Go a Helluva Lot Further | 801840F6 00C0 |
| Quantity Digits to Accompany Status Modifier Codes (Mech Warrior 2 Codes) | |
| 08 - Not Active & Doesnt Use Ammo 09 - Not Active & Uses Ammo 0A - Active & Doesnt Use Ammo 0B - Active & Uses Ammo |
