Billy and Mandy in: Trepanation of the Skull and You

Jack, a headless prankster from Grim's past, uses Billy to steal Grim's scythe so he can destroy Grim and take over the world with demons from the Netherworld.

The Spider Queen wants to take revenge on Grim for denying her the rightful place as the Ripper.

An aspiring young chef named Chowder has adventures as an apprentice in Mung Daal's catering company. Although he means well, Chowder often finds himself in predicaments due to his perpetual appetite and his nature as a scatterbrain. He is also pestered by Panini, the apprentice of Mung's rival Endive, who wants Chowder to be her boyfriend, which he abhors.

Grim & Evil also known as Maxwell Atoms' Grim & Evil and promotionally referred to as The Grim & Evil Show, is an American animated television series created by Maxwell Atoms. The series, which debuted on Cartoon Network, consisted of two segments which were eventually spun off into their own series, The Grim Adventures of Billy & Mandy and Evil Con Carne.

The exploits of the Grim Reaper, who has been forced into being the best friend of two children. A spin-off of the show Grim & Evil.

Alien werewolves from the Moon attack Earth and steal all the cheese. It's up to Mandy, Grim, Billy, and Sperg to stop the alien ploy.

Santa has been turned into a vampire, and only Billy and Mandy can turn him back and save Christmas.

Scooby-Doo and the gang team up with their pals, Bill Nye The Science Guy and Elvira Mistress of the Dark, to solve this mystery of gigantic proportions and save Crystal Cove!

Billy's hamster turned 10 in human years, but was awaiting to see the Grim Reaper. Billy and his friend, Mandy challenge the Reaper to a game of limbo to become best friends.

A fun and funny tale about a sensitive, curious and rockin’ Naked Mole Rat named Wilbur who “scandalously” decides to (gasp!) get dressed! Find out what happens when Wilbur’s newfound love of rocking outfits rocks Naked Mole Rat society to its core.

In Hell, imp Blitzø (the 'o' is silent) runs an assassin business targeting the world of the living, using a spell book borrowed from a prince of the underworld. With employees Moxxie, Millie, and Loona, they attempt to survive each other while keeping business afloat.

An evil sorceress transports the gang back to the age of chivalrous knights, spell-casting wizards, and fire-breathing dragons.

When the Boogey Man causes Grim to lose his powers, rank, and title in the Underworld Court for misusing his powers, he plots to seek out Horror's Hand and take over the world. It's up to Billy, Mandy, Irwin, and Grim to get to Horror's Hand before the Boogey Man does.

Irwin, Hoss Delgado, Jeff the Spider, Fred Fredburger, and General Skarr from the "Grim Adventures of Billy and Mandy" team up to fight an evil candy army from the Underworld on Halloween.

A crossover with The Grim Adventures of Billy and Mandy and Codename: Kids Next Door. While Billy's Dad is underwear shopping, Billy wears his dad's lucky pants, and accidentely rips them with Grim's scythe. He calls Ed, Edd n Eddy, and they recommend Kids Next Door for charity. Numbuh 1 disguises as Billy while Billy is taken to the Deep Sea Lab. Mandy arrives at Billy's house and knows Numbuh 1 is not Billy, and tortures him into revealing the truth. Meanwhile, the Delightful Children From Down the Lane and Billy accidentally fuse with the scythes power to create the Delightful Reaper, and Mandy takes over the KND by fooling Numbuh 362 and the rest of the operatives. Now its up to Numbuh 1 and the Grim Reaper to save KND and stop Mandy and the Delightful Reaper.

The adventures of the noble, generous, intelligent and good-at-everything I.M. Weasel, who must compete once again with his arch-enemy, the bumbling, brainless and utterly talentless I.R. Baboon.