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Grim Adventures of Billy & Mandy, The
3D Fighter (Free for All) by High Voltage / Midway
Gamecube
Worldwide
9/25/2006
Playstation 2
Worldwide
9/25/2006
Wii
Worldwide
11/16/2006
Xbox
Developer comments in the released versions mention code and protocols for an Xbox version that never saw light of day.
Unreleased

Fighters
Billy
Boogey
Gamecube
Brain-Eating Meteor
Dracula
Gamecube
Eris
Gamecube
Fred Fredburger
Gamecube
General Skarr
Gamecube
Grim
Gamecube
Hoss Delgado
Gamecube
Irwin
Gamecube
Jack O'Lantern
Gamecube
Lord Pain
Gamecube
Mandy
Gamecube
Mogar
Gamecube
Nergal
Gamecube
Nergal Jr.

Credits
Worldwide
Announcer
Announcers in fighting games normally call out the character names, rounds, winners, and sometimes color commentary.
Weird Al Yankovic
Voice Actor

Richard Steven Horvitz as Billy
Fred Willard as Boogey
Phil LaMarr as Dracula
Rachael MacFarlane as Eris
C.H. Greenblatt as Fred Fredburger
Armin Shimerman as General Skarr
Greg Eagles as Grim
Diedrich Bader as Hoss Delgado
Vanessa Marshall as Irwin
Maurice LaMarche as Jack O'Lantern
Henry Gibson as Lord Pain
Grey DeLisle as Mandy
Richard Steven Horvitz as Mogar
Martin Jarvis as Nergal
Debi Derryberry as Nergal Jr.