The Grim Adventures of Billy & Mandy (video game)

The Grim Adventures of Billy & Mandy
Company type	Video game
Industry	Video games
Founded	September 25, 2006; 20 years ago
Founder	Midway, High Voltage Software, Full Fat (GBA version)
Headquarters	United States
Products	Video games
Parent	Midway

Adapted from the English Wikipedia article The Grim Adventures of Billy & Mandy (video game), available under CC BY-SA 4.0Updated 9 August 2025

The Grim Adventures of Billy & Mandy is a fighting video game released by Midway, inspired by the Cartoon Network animated series. Created by High Voltage Software, it debuted in North America on September 25, 2006, for the GameCube and PlayStation 2, followed by a launch on the Wii on November 17, 2006. Additionally, a side-scrolling beat 'em up version for the Game Boy Advance, developed by Full Fat, was made available on October 31, 2006. The Wii edition arrived in Australia on March 15, 2007, and reached European markets the next day.

Players engage in battles within three-dimensional arenas, utilizing attacks, items, and environmental traps to be the last combatant standing. The game garnered mixed feedback; reviewers commended its visual style, faithful adaptation of the source material, and multiplayer features but pointed out its simplistic gameplay mechanics and limited content variety.

Gameplay

The Grim Adventures of Billy & Mandy operates as a 3D arena-based fighting game, bearing resemblance to the Power Stone franchise. It supports up to four players competing in three-dimensional stages where light and heavy strikes are used to reduce opponents' health and eliminate them. Each of the eight arenas incorporates interactive hazards such as enemies or traps that affect combat dynamics. Many levels contain multiple interconnected sub-arenas that transition during play—for instance, rising lava may force players onto a large serpent platform. Combatants can pick up various weapons like halberds or clubs to inflict greater damage. Scattered treasure chests yield items including weapons, health restoratives, and Mojo Balls that charge a player's Mojo Meter with up to two levels.

Upon reaching the first Mojo Meter threshold, players can unleash a Mojo Smackdown—a rapid attack sequence capable of knocking out foes unless they respond with a Mojo Counterattack, which consumes both players’ meters. At the second level, activating a Mojo Meltdown instantly defeats all adversaries. Players have a finite number of lives; losing all health costs one life, and exhausting all lives results in a temporary incapacitation. During this vulnerable state, opponents can initiate a quick time event called "final elimination" to remove the player from combat. If unsuccessful, the player resumes fighting but remains exposed to further eliminations.

Multiple modes increase replayability. Story Mode consists of five AI battles culminating in a boss fight against the brain-consuming meteor from "Little Rock of Horrors", playable solo or cooperatively with two players. Vs. Mode supports up to four participants with customizable match formats and rulesets such as "Bask-Eye-Ball" (objective-based), "Crush the Horde" (enemy waves), and "Skull Keeper" (Keep Away gameplay). Mission Mode challenges players with 45 specific tasks using preset characters and conditions. Completing missions, Story Mode, and other achievements unlocks new characters, stages, costumes, and gameplay options. The "Extras" section includes character biographies, unlockable content details, concept art galleries, and trailers for Cartoon Network and Warner Bros. Pictures productions.

The Wii version utilizes motion controls through the Wii Remote and Nunchuk: heavy attacks are performed by swinging the Remote while final eliminations employ its infrared pointer for targeting opponents. Classic controls remain accessible via the GameCube controller as well.

Characters

The game for consoles offers 15 fully playable characters, along with five additional "horde characters"—these are enemy figures within the game that have restricted move sets and cannot be used in certain gameplay modes. Initially, only Billy, Mandy, Grim, and Irwin are accessible; the remaining characters become available as players progress through the game.

Game Boy Advance version

The Game Boy Advance edition transforms the console storyline into a 2D side-scrolling beat 'em up combined with platforming mechanics. Players take control of Billy, Mandy, and Grim as they navigate through levels filled with adversaries and environmental challenges. Defeating foes fills a Mojo Meter that activates a brief invincible powered-up state, enabling instant elimination of enemies. Throughout levels, weapons also appear to aid in combat.

Within Story Mode, players experience short campaigns dedicated to each character, each concluding with a boss battle: Billy confronts General Skarr in Endsville, Mandy faces Jack in the pumpkin patch, and Grim battles Nergal in the Underworld. Initially, only Billy's campaign is unlocked; completing all three stories reveals the game's ending. Additionally, a mission mode provides extra scenarios. Successfully finishing stories or missions grants Mojo Balls, which are used to unlock further content; collecting all 54 Mojo Balls unlocks a concept art gallery.

Plot

Grim’s trunk is broken into, releasing his Mojo Balls—dark magical orbs that infect anyone who touches them with supernatural fury, inciting chaos throughout Endsville. Following a trail of feathers, Billy, Mandy, Grim, and Irwin journey across various familiar locations from the series to retrieve the Mojo Balls and uncover who is responsible, battling others affected by the mojo-induced rage along the way.

The feather trail ultimately leads back to Billy’s home, where they recover the final Mojo Ball from a brain-consuming meteorite that crashes into his backyard. It is revealed that Billy opened Grim’s trunk in an attempt to free "Moe and Joe"; however, due to a curse placed by Grim, Billy begins growing chicken feathers—explaining the feather trail. Mandy breaks the fourth wall by expressing a wish for a game mode to punish Billy. During the credits, players can take control of Mandy to attack Billy.

Development and release

On February 15, 2005, Midway announced a licensing agreement with Cartoon Network to create games based on three franchises: Ed, Edd n Eddy: The Mis-Edventures, The Grim Adventures of Billy & Mandy, and a cancelled Dexter's Laboratory title. The original TV series voice actors returned for their roles except for Jack O'Lantern, who was voiced by Maurice LaMarche instead of Wayne Knight. "Weird Al" Yankovic, known for voicing Squidhat in the series, served as the in-game announcer. The soundtrack was composed by Gregory Hinde and Drew Neumann—the composers of the animated show—and featured two songs originally from episodes: "Darkness" by SPF 1000 and "Brains!" by Voltaire.

The GameCube and PlayStation 2 editions were released in September 2006; the Game Boy Advance version arrived in October, followed by the Wii version in November as part of its launch lineup. The Wii release was the only version distributed internationally, reaching Europe and Australia by March 2007. A planned Microsoft Windows edition was cancelled during development. The PlayStation 2 version included a bonus DVD containing the season one episode "Little Rock of Horrors" alongside behind-the-scenes footage featuring series creator Maxwell Atoms and voice actors Greg Eagles, Richard Steven Horvitz, and Grey DeLisle.

Reception

According to the review aggregator Metacritic, the game garnered generally "mixed or average" evaluations across all platforms. Greg Mueller from GameSpot highlighted the "fast-paced gameplay" as engaging during the initial hours but pointed out drawbacks such as a brief story mode and repetitive combat. Meanwhile, Mark Bozon of IGN commended the visual presentation and charm of the GameCube and PS2 editions, while characterizing the Wii version as "a competent title with limited Wii-specific features and some technical shortcomings."

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