Show Peak Performance info At the "Debriefing" or "Download Station" screens of Disc One, hold L1 + R1 buttons and press Square, Triangle, O at the "Bulletins" screen of Disc One.
Show Mech Warrior 2 info Quickly press Square, Triangle, O, X.
Show K1: The Arena Fighters info Hold L1 + L2 and press R1, R2 buttons at the main menu of Disc One.
Toggle music Press the Start button at the main menu of Disc One.
Show WCW vs. The World info Press Square, Square, Triangle, Triangle, O, O at the "Tech Q & A" screen of Disc One.
Intelligent Qube preview Press O, Triangle, Square, Triangle at the "Imports" screen of Disc One.
Watch Twisted Metal 2 picture Hold Square and press Triangle, Triangle, Triangle, O, O, O at the "Download Station" screen of Disc One.
Watch game tester image: Hold L1 + L2 + R1 + R2 buttons and press Square, O, Triangle, Square at the "Research And Development" screen of Disc One.
Blasto preview Hold Triangle + O and press Square, Square at the "Debriefing" screen of Disc One.
View Blasto picture Press O, Square, Triangle, O at the "Tech Q & A" screen of Disc One.
Latest cheat codes for Underground CD Volume 1-2 at Cheatserver.com
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