At the "Code Archive" screen of Disc 1, press Square, Circle, Square, Triangle.
At the "Bulletin Board" screen of Disc 1, hold Triangle + Circle and rapidly tap Square.
At the "Event Center" screen of Disc 1, hold Triangle + Circle and rapidly tap Square.
At the "Vault" screen of Disc 2, press Square, Triangle, Square, Circle.
At the "Vault" screen of Disc 2, press Triangle, Square, Triangle, Square, Triangle.
At the "Vault" screen of Disc 2, hold Triangle + Circle and press Square(2).
At the "Vault" screen of Disc 2, press Circle, Triangle, Circle, Square, Circle.
At the "Vault" screen of Disc 2, press R2.
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!
| DISC 2 | |
| Tomb Raider 2 | |
| Infinite Oxygen | 80097906 0708 |
| Infinite Health | 801A8D6A 03E8 |
| Infinite Flares | 8009398E 0003 |
| Infinite Shotgun Ammo | 800979B4 000C |
| Moon Jump | D0095810 0010 801A8D68 FFE0 |
| Cardinal Syn | |
| Infinite Health Orion | 800E3BE8 0190 |
| Ghost In The Shell | |
| Invincible | 801202D8 00C8 80120314 00C8 |
| Infinite Grenades | 801202DC 0001 |
