Season 4

2005-06-24

In "Duck!", the spirit of a duck follows everyone in Endsville around making Bronx cheer noises. In "Aren't You Chupacabra To See Me?", Billy befriends a Chupacabra that lives in an enchanted VHS tape and can emerge into reality via the TV.

2005-06-27

In "Zip Your Fly", a "wardrobe malfunction" on the part of a magic zipper causes Mandy and a fly to switch heads with one another. In "Puddle Jumping", Billy, Mandy and Grim have fun with an enchanted kiddie pool that has the power to transport them to other bodies of water in alternate dimensions.

2005-04-01

Billy is ordered by Mindy to look after the Endsville school mascot, with typically disastrous results. In "Hog Wild", Billy's flagrant disregard of the rules lands him in deep trouble when he messes with his father's new motorcycle, which he has been forbidden to touch.

2005-07-29

Mandy enters a beauty pageant for the sole purpose of showing up Mindy.

2005-06-24

In "Jeffy's Web", Jeff the spider lays a thousand eggs and asks Billy to take care of them. In "Irwin Gets a Clue", Irwin becomes Hoss Delgado's sidekick.

2005-06-28

In "Runaway Pants", Nergal, Jr. turns into a pair of pants. In "Scythe 2.0", Grim tries to upgrade to a new scythe, with disastrous results.

2005-06-29

In "The Firebird Sweet", Billy discovers a magical phoenix inside a box of Frosted Golden Apple Scraps. In "The Bubble With Billy", Billy receives from Grim some underworld gum, which must not be swallowed.

2005-06-30

In "Billy Idiot", Billy pursues his dream of being a ballet dancer. In "Home of the Ancients", Grim, Billy and Mandy are sentenced to community service in a retirement home.

2005-08-05

Billy, Mandy, and Grim visit Nigel Planter who is now a teenager with only one thing on his mind. Hoss Delgado and Eris pose as Billy's parents for principal Goodvibes visit.

2005-08-12

Mommy Fiercest: Grim helps Billy's mum with her wrinkles by turning her into a girl. The Taking Tree: Billy loses his action figure and Grim loses his scythe to the Taking Tree.

2005-10-07

Reap Walking: Mandy tries to prove that Grim is innocent of reaping the rare white-winged owls. The Loser from Earth's Core: Billy and Grim try to make Nergal accept his life.

2005-10-14

Ecto Cooler: The ghost of Lord Byron helps Billy to become the coolest kid in school. Schlubs: Grim discovers the tiny mushroom village of the Schlubs in Billy's backyard.

2005-10-21

Billy and Irwin make a prank call using Grim's cursed phone, thereby waking up a sea monster named Cthulu, who can destroy the world unless Grim and Mandy stop him.