Cheats & Guides

N2O: Nitrous Oxide Cheats For PlayStation

  1. Cheat Code Passwords

    Enter the following code at the Enter codes screen: (Also Can Be Found At Options)

    Effect Effect
    Square, Square, Square, Triangle, Circle, Triangle, Square, Square Bonus Level Access
    Square, Square, Cross, Circle, Circle, Circle, Circle, Triangle Disable All Cheats
    Square, Triangle, Circle, Triangle, Cross, Triangle, Square, Cross Full Level Access
    Cross, Cross, Square, Cross, Cross, Cross, Triangle, Triangle Infinite Firewalls
    Circle, Cross, Cross, Triangle, Square, Triangle, Square, Circle Infinite Lives
    Square, Cross, Circle, Square, Cross, Square, Circle, Square Infinite Weapons
    Square, Triangle, Cross, Triangle, Circle, Square, Triangle, Cross No Bonus Reset On Death
    Circle, Cross, Square, Triangle, Triangle, CIrcle, Triangle, Circle Underwater Mode
    Square, Circle, Cross, Triangle, Triangle, Cross, Circle, Cross Unlock All Levels
    Cross, Cross, Cross, Square, Triangle, Circle, Cross, Triangle Unlock Speedcore

    Contributed by: CCajes, Mike Truitt, Dogg, KasketDarkfyre, Lagunathemoron 

  2. Level Passwords

    Select Options, Then Select Enter Code Screen To Unlock These Levels. Alterately, Complete All Levels. Note: Level 2, 3, 4 And 5 Code Doen't Work On N2O!

    Effect Effect
    Cross, Triangle, Square, Circle, Triangle, Cross, Cross, Cross Level 10 - Maniaxis
    Circle, Square, Triangle, Square, Circle, Triangle, Square, Triangle Level 11 - Manitodium
    Circle, Cross, Cross, Cross, Triangle, Cross, Cross, Square Level 12 - Chitinara
    Square, Triangle, Triangle, Circle, Circle, Cross, Circle, Circle Level 13 - Orbituary
    Square, Square, Triangle, Circle, Circle, Triangle, Circle, Cross Level 14 - Kullah
    Circle, Triangle, Cross, Square, Circle, Triangle, Triangle, Triangle Level 15 - Pandemaniac
    Circle, Square, Triangle, Cross, Circle, Circle, Circle, Square Level 16 - Killammetus II
    Cross, Circle, Triangle, Cross, Square, Square, Square, Circle Level 17 - Spirallax II
    Circle, Triangle, Circle, Circle, Triangle, Square, Square, Cross Level 18 - Viru22 II
    Square, Cross, Circle, Square, Circle, Cross, Cross, Triangle Level 19 - Panicide II
    Circle, Cross, Cross, Cross, Square, Circle, Square, Cross Level 2 - Spirallax
    Circle, Square, Triangle, Square, Square, Square, Square, Square Level 20 - Psychodiversion II
    Circle, Circle, Circle, Circle, Triangle, Cross, Triangle, Circle Level 21 - Insection II
    Circle, Cross, Circle, Triangle, Cross, Circle, Triangle, Cross Level 22 - Mandiballistix II
    Square, Square, Triangle, Circle, Triangle, Cross, Circle, Triangle Level 23 - Maligament II
    Circle, Circle, Square, Triangle, Square, Triangle, Triangle, Square Level 24 - Pestilex II
    Circle, Cross, Triangle, Cross, Square, Triangle, Cross, Circle Level 25 - Maniaxis II
    Square, Circle, Circle, Circle, Cross, Circle, Cross, Cross Level 26 - Manitorium II
    Square, Square, Triangle, Circle, Cross, Cross, Square, Triangle Level 27 - Chitinara II
    Cross, Cross, Circle, Triangle, Square, Circle, Cross, Square Level 28 - Orbituary II
    Square, Square, Circle, Circle, Circle, Circle, Circle, Circle Level 29 - Kullah II
    Circle, Cross, Circle, Circle, Square, Triangle, Cross, Triangle Level 3 - Viru22
    Circle, Circle, Triangle, Circle, Triangle, Circle, Square, Square Level 4 - Panicide
    Square, Triangle, Square, Triangle, Square, Triangle, Triangle, Circle Level 5 - Psychodiversion
    Square, Square, CIrcle, Square, Tirangle, Cross, Triangle, Cross Level 6 - Insection
    Cross, Triangle, Circle, Square, Cross, Triangle, Circle, Triangle Level 7 - Mandiballistix
    Square, Circle, Circle, Triangle, Triangle, Square, Triangle, Square Level 8 - Maligament
    Square, Circle, Cross, Triangle, Square, Square, Cross, Circle Level 9 - Pestilex

    Contributed by: smallfry645, Bl3u 

N2O: Nitrous Oxide Cheats For PC

  1. Steam Achievements

    Achievement Achievement
    Collect 100 coins in one stage. Bug Bank
    Collect 50 coins in one stage. Coin Mania
    Make it to the bonus level. Did anyone order more coins?
    Kill 5 tarantulas in one stage. Eek! Get those away from me!
    Collect 10 Flame Walls and 10 Shields. Hoarding all the loot
    Kill 5 flies in one stage. I'd never hurt a fly
    Kill 2 caterpillar heads and 6 caterpillar bodies in one stage. It's alive, it's alive, IT'S ALIVE!
    Kill 8 Yellow, Red, and Blue bugs in one stage. Rainbow Bug Killer
    Kill 5 fireflies in one stage. Serenity
    Collect 10 lives. These bugs give me a heart attack!

    Contributed by: Guard Master