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When Billy destroys Grim's favorite childhood toy, Fancy Jake, Grim feels devastated and wishes he had never lost the limbo game that made him become Billy and Mandy's best friend forever and ever. A lawyer appears saying that although the game is legally binding while all parties remain on Earth, it is not if Grim leaves Earth. In consequence, Grim follows the lawyer's advice, opens a mystical portal, and leaves. With Grim traveling aboard his spaceship, the lawyer takes off his disguise and introduces himself as Morg, the Martian Grim Reaper, who is also Emperor of Mars and commands an army of Martian, brain-eating zombies.

Writing:
  • Maxwell Atoms
  • Mike Diederich
  • Aaron Springer

Stars:
Release Date: 2001-08-24
Seasons: 1 2 3 4 5 6 7
Metacritic: 8.4/10
TMDb: 8.0/10
  • Country: US
  • Language: English
  • Runtime: 11

Other episodes for this season

Billy Ocean
Episode 1 - Billy Ocean
Hill Billy
Episode 2 - Hill Billy
Keeper of the Reaper
Episode 3 - Keeper of the Reaper
The Love That Dare Not Speak Its Name
Episode 4 - The Love That Dare Not Sp...
Major Cheese
Episode 5 - Major Cheese
Modern Primitives
Episode 6 - Modern Primitives
Giant Billy and Mandy All Out Attack
Episode 7 - Giant Billy and Mandy All...
The Wrongest Yard
Episode 8 - The Wrongest Yard
Druid, Where's My Car?
Episode 9 - Druid, Where's My Car?
Herbicidal Maniac
Episode 10 - Herbicidal Maniac
Chaos Theory
Episode 11 - Chaos Theory
A Grim Day
Episode 12 - A Grim Day
Pandora's Lunch Box
Episode 13 - Pandora's Lunch Box
Billy and Mandy vs. the Martians
Episode 14 - Billy and Mandy vs. the Martians
Dumb-Dumbs and Dragons
Episode 15 - Dumb-Dumbs and Dragons
Fear and Loathing in Endsville
Episode 16 - Fear and Loathing in Ends...
Dad Day Afternoon
Episode 17 - Dad Day Afternoon
Scary Poppins
Episode 18 - Scary Poppins
Hurter Monkey
Episode 19 - Hurter Monkey
Goodbling and the Hip-Hop-Opotamus
Episode 20 - Goodbling and the Hip-Hop...
Spidermandy
Episode 21 - Spidermandy
Be A-Fred, Be Very A-Fred
Episode 22 - Be A-Fred, Be Very A-Fred
The Crass Unicorn
Episode 23 - The Crass Unicorn
Billy & Mandy Begins
Episode 24 - Billy & Mandy Begins