Underground CD Volume 1-4
View memory card commercial:
Press Square, Circle, Square, Triangle at the "Code Archive" screen of
Disc 1.
Contest:
Hold Triangle + Circle and rapidly tap Square at the "Bulletin Board"
screen of Disc 1.
"Where Are They Now" FMV sequence:
Hold Triangle + Circle and rapidly tap Square at the "Event Center"
screen of Disc 1.
View Red Asphalt codes:
Press Square, Triangle, Square, Circle at the "Vault" screen of Disc 2.
View Resident Evil 2 preview:
Press Triangle, Square, Triangle, Square, Triangle at the "Vault" screen
of Disc 2.
View unreleased Twisted Metal FMV sequence:
Hold Triangle + Circle and press Square(2) at the "Vault" screen of Disc
2. An unused Sweet Tooth winning ending sequence will be displayed.
View "Clumsy" music video:
Press Circle, Triangle, Circle, Square, Circle at the "Vault" screen of
Disc 2.
Falling snow:
Press R2 at the "Vault" screen of Disc 2.