N20 PlayStation 1 Cheats

Codes
All of these are in the "Enter Codes"

Infinate Lives: O, X, X, Triangle, Square, Triangle, Square, O

Level Select (Up to 30): Square, Triangle, O, Triangle, X, Triangle, Square, X

Weapons: Square, X, O, Square, X, Square, O, Square

Firewalls: X, X, Square, X, X, X, Triangle, Triangle