• Developer Mode

    Submit the thedayismine code, then push ~ to see the console window. After that submit what cheat you want.

    door_ignore_locks = 1All Doors Unlocked
    F8Change Character
    chr_nocollision 0 or 1Clipping Mode (0 to disable 1 to enable)
    F7Cycle through all possible weapons
    CTRL + SHIFT + YDisplay Frame Rate
    CTRL + SHIFT + BDisplay Opponent Logic
    ai2_killKill all nearby AI
    F11Playback Recording
    F9Start Recording
    F10Stop Recording
    CTRL + SHIFT + GToggle Slow Motion
    CTRL + SHIFT + SToggles Textures
    dump_docsView Console Commands

    Contributed By: Undergrads2003.

  • Oni Cheat Codes

    Go to the Menu (F1) and type following code:

    bigheadBig Head
    shapeshifterChange Character (Press F8 to change)
    chenilleDaodan Power
    thedayismineEnables developer mode
    fatlootFat Loot
    fistsoflegendFists of Legend
    roughjusticeGatling Gun
    glassworldGlass Furniture
    behemothGodzilla Mode
    loselevelInstantly Lose Level
    winlevelInstanty Win Level
    reservoirdogsLast Man Standing
    minimeMini Mode
    moonshadowPhase Cloaker
    carouselSlow Motion
    superammoSuper Ammo Mode
    killmequickUltra Mode
    munitionfrenzyWeapon Locker

    Contributed By: white_leaf and eli0918.


  • Quick-Reloading Mercury Bow

    You can circumvent the reload time for the Mercury Bow by dropping the weapon after firing and then picking it back up. It will instantly be ready for another shot.

    Contributed By: Ryusui.

Easter Eggs

  • Activate ''big head'' mode in level 12

    In Level 12 ''Dr Hasagawa's Lab'', there's a part early on where four tiny strikers rush at you. If you manage to kill them all before one of them runs back into the wall (good luck!), the ''Big Head'' cheat will automatically turn on, giving you and enemies in the level big noggins.

    Contributed By: Dais.


  • Activate Cheat Codes

    Before you can use the codes, you must activate them. If you haven't beaten the game yet, then you must hex-edit one of the files.

    (This is from

    ''Open up the 'persist.dat' file with your Hex Editor. Go to location 0x44 and change the value there to 07. Once that is done, to run the cheat codes press [F1] while in the game to open the menu and type in the cheats you want to use.''

    (If you don't have a hex-editor, you can get a free one at

    Contributed By: PrEyX.

Know Something We Don't?

You can submit new cheats for this game and help our users gain an edge.

Have We Been Fooled?

You can submit a problem report for any non-working or fake code in the lists above.