Season
Season 7 Episode
- Season 6 Billy Ocean
- Season 6 Hill Billy
- Season 6 Keeper of the Reaper
- Season 6 The Love That Dare Not Speak Its Name
- Season 6 Major Cheese
- Season 6 Modern Primitives
- Season 6 Giant Billy and Mandy All Out Attack
- Season 6 The Wrongest Yard
- Season 6 Druid, Where's My Car?
- Season 6 Herbicidal Maniac
- Season 6 Chaos Theory
- Season 6 A Grim Day
- Season 6 Pandora's Lunch Box
- Season 6 Billy and Mandy vs. the Martians
- Season 6 Dumb-Dumbs and Dragons
- Season 6 Fear and Loathing in Endsville
- Season 6 Dad Day Afternoon
- Season 6 Scary Poppins
- Season 6 Hurter Monkey
- Season 6 Goodbling and the Hip-Hop-Opotamus
- Season 6 Spidermandy
- Season 6 Be A-Fred, Be Very A-Fred
- Season 6 The Crass Unicorn
- Season 6 Billy & Mandy Begins
The Grim Adventures of Billy and Mandy - Season 6 Episode 14 Billy and Mandy vs. the Martians
8.10 11 minutes 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.
