At the main menu of Disc 1, press Start.
At the main menu of Disc 1, hold L1 + L2 and press R1, R2.
Quickly press Square, Triangle, Circle, X.
At the "Download Station" or "Debriefing" screens of Disc 1, hold L1 + R1 and press Square, Triangle, Circle at the "Bulletins" screen of Disc 1.
At the "Tech Q & A" screen of Disc 1, press Square(2), Triangle(2), Circle(2).
At the "Imports" screen of Disc 1, press Circle, Triangle, Square, Triangle.
At the "Debriefing" screen of Disc 1, hold Triangle + Circle and press Square(2).
At the "Tech Q & A" screen of Disc 1, press Circle, Square, Triangle, Circle.
At the "Download Station" screen of Disc 1, hold Square and press Triangle(3), Circle(3).
At the "Research And Development" screen of Disc 1, hold L1 + L2 + R1 + R2 and press Square, Circle, Triangle, Square.
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!
| Funky Beans (Disc 1) | |
| Score Modifier P1 | 80152A2A ???? |
| Score Modifier P2 | 80152EF8 ???? |
| NBA Shootout '97 (Disc 1) | |
| Score Modifier Away Team | 800B8794 ???? |
| Score Modifier Home Team | 800B8790 ???? |
| Infinite Time | 800B8744 D300 |
| Porsche Challenge (Disc 1) | |
| Infinite Check Point Time | 800E1680 04CF |
| Super Puzzle Fighter 2 Turbo (Disc 1) | |
| Score Modifier P1 | 801AF08C ???? |
| Score Modifier P2 | 801AF338 ???? |
| Play 12 Rounds | 801AF0AC 0000 801AF358 0000 |
| The Appointed Station (Disc 1) | |
| Infinite Time | 801A85F8 0014 |
| Infinite Rays | 801A85C8 0004 |
| Treasures of The Deep (Disc 1) | |
| Infinite Nets | 80047796 000A |
| Infinite Oxygen | 80118D80 0168 |
| Infinite Health | 800BBA44 EA60 |
| Final Fantasy VII (Disc 2) | |
| Infinite HP (Cloud) | 800F5488 02A8 |
| Infinite MP (Cloud) | 800F7A68 00AA |
| Infinite HP (Tifa) | 8009DCD8 01B8 |
| Infinite MP (Tifa) | 8009DCD0 00C8 |
Note: For Quick Score Gain, change the '?'s to 'F's on the Score Modifier Codes.
