N20 – Nitrous Oxide PS Cheats

At the Main Menu Screen go to ‘Game Options.’ Now go to ‘Enter Code’ and, well, enter these codes!

Firewall Cheat:X, X, Square, X, X, X, Triangle, Triangle
Weapons:Square, X, O, Square, X, Square, O, Square
Infinite Lives:O, X, X, Triangle, Square, Triangle, Square, O
Access Any Level:Square, Triangle, O, Triangle, X, Triangle, Square, X
Bonus Level Access:X, X, X, Square, Triangle, O, X, Triangle 
Water Effect:O, X, Square, Triangle, Triangle, O, Triangle, O
No Bonus Reset after Death:Square, Triangle, X, O, Square, Triangle, X
Disable Cheats:Square, Square, X, O, O, O, O, Triangle

Game Shark Codes

Infinite Lives P18011b354 0103
8011b36c 0103

Thanks to Revolution readers Ryan Plunkett, Daniel Caliento, and Cid!