Cheats & Guides

The Grim Adventures of Billy & Mandy Cheats For PlayStation 2

  1. Unlockable Characters

    The first 4 unlockable characters can already be played in "VS. Mode". But you have to unlock them in "Story Mode".

    Unlockable Unlockable
    Complete Mission 9 in Tier 4 in Mission mode Boogey
    Complete Story mode with all characters and accumulate 10 hours of game play time Chicken
    Beat Story Mode once with every character and fight a total of 100 Vs. Mode matches Clown
    Complete Mission 5 in Tier 3 in Mission mode Dracula
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin. Eris
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin. Fred Fredburger
    Beat Mission 6 of Tier 4 in Mission Mode General Skarr
    Beat Mission 9 in Tier 1 in "Mission Mode". Hoss Delgado
    Beat Mission 9 of Tier 2 in Mission Mode jack
    Beat Misson 9 Tier 5 Lord Pain
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin. Mogar
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin. Nergal
    Beat Mission 9 of Tier 3 in Mission Mode nergal jr
    Beat Story Mode with all characters Nergling
    Beat Story Mode once with every character and accumulate a total of 100,000 damage in Vs. Mode Pumpkin
    Beat Story Mode With all characters and destroy every letter in the credits sequence Viking

    Contributed by: sephirosuy, irwin85, Jelly Soup, Trexmaster576, 911gamehelp911 

  2. Cheat Code

    At the main menu, Hold Circle and press the following

    Effect Effect
    Up, Up, Down, Down, Left, Right, Left, Right, then release Circle View Concept Art Sketch

    Contributed by: GameMasterZer0 

The Grim Adventures of Billy & Mandy Cheats For GameCube

  1. 2nd Set Costumes

    Complete all Mission Mode Matches. 15 of them unlock you the characters' second costumes

    Contributed by: goppers 

  2. 1st Set Costumes

    Complete the Story mode with any character to unlock an outfit for them.

    Contributed by: FireImps87 

  3. Unlockable Characters

    The first 4 unlockable characters can already be played in "VS. Mode". But you have to unlock them in "Story Mode".

    Unlockable Unlockable
    In Mission Mode beat Mission 9 in "Tier 4" Boogey
    Beat Story Mode with all characters on any difficulty with 10 hours of gameplay Chicken
    Battle 100 times in Versus Mode Clown
    In Mission Mode beat Mission 5 in "Tier 3" Dracula
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Eris
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Fred Fredburger
    In Mission Mode beat Mission 6 in "Tier 4" General Skarr
    Beat Mission 9 in Tier 1 in "Mission Mode" Hoss Delgado
    In Mission Mode beat Mission 9 in "Tier 2" Jack O'Lantern
    Complete Mission 9 in Tier 5 Lord Pain
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Mogar
    Beat "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Nergal
    In Mission Mode beat Mission 9 in "Tier 3" Nergal Jr.
    Beat Story Mode with all characters on any difficulty Nerglings
    Get 100,000 damage in Vs. Mode and have all characters complete Story Mode Pumpkin
    Beat Story Mode with all characters and destroy every letter in the credits sequence Vikings

    Contributed by: kadaj766, Darkwarlord2000, mysterypaul, crashblast23, FireImps87, goppers 

The Grim Adventures of Billy & Mandy Cheats For Wii

  1. Extra costume

    Choose the character that you wish to have extra costume and use him/her to clear the Story Mode.

    Contributed by: sephirosuy 

  2. Unlockable characters

    Unlockable Unlockable
    In Mission Mode Finish Mission 9 in "Tier 4" Unlock Boogey
    Finish Story Mode with all characters on any difficulty with 10 hours of gameplay Unlock Chicken
    Beat Story Mode once with every character and fight a total of 100 Vs. Mode matches. Unlock Clown
    In Mission Mode finish Mission 5 in "Tier 3" Unlock Dracula
    Finish "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Unlock Eris
    Finish "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Unlock Fred Fredburger
    In Mission Mode finish Mission 6 in "Tier 4" Unlock General Skarr
    Finish Mission 9 in Tier 1 in "Mission Mode" Unlock Hoss Delgado
    In Mission Mode finish Mission 9 in "Tier 2" Unlock Jack O'Lantern
    Finish Mission 9 in Tier 5 Unlock Lord Pain
    Finish "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Unlock Mogar
    Finish "Story Mode" once with either Billy, Mandy, Grim, Or Irwin Unlock Nergal
    In Mission Mode finish Mission 9 in "Tier 3" Unlock Nergal Jr.
    Finish Story Mode with all characters on any difficulty Unlock Nerglings
    Beat Story Mode once with every character and accumulate a total of 100,000 damage in Vs. Mode. Unlock Pumpkin
    Finish Story Mode with all characters and destroy every letter in the credits sequence Unlock Vikings

    Contributed by: mewtwo3, SBergkamp 

  3. View Concept Art Sketch

    Enter this code at the main menu screen.

    Effect Effect
    (Hold 1) Up Up Down Down Left Right Left Right (Release 1) View Concept Art Sketch

    Contributed by: ffmasterjose