Season 3

2004-10-01

In "Super Zero", Grim grants Billy's wish to be a superhero, and he then goes to fight an Evil Empire. Meanwhile, Grim has to put up with Billy's inept father. In "Sickly Sweet", Billy and Grim put the Mask of the Beast on Mandy's face to coerce her into being a kinder, gentler person. Unfortunately and unsurprisingly, however, it all backfires on them.

2004-10-09

In "Bearded Billy", Billy uses Grim's hair tonic on himself to grow a beard, only to resemble a sasquatch when he uses too much of it and is now being hunted for money, with Grim and Mandy as his only hopes. In "The Nerve", Billy robs Mandy of her nerve to get revenge on Sperg for abusing him and his evil self takes over him in the process. Mandy, meanwhile, tries to regain her nerve.

2004-10-16

In "Test of Time", Billy uses a supernatural remote control to catch up on his schoolwork... or does he? In "A Kick In the Asgard", during a thunderstorm, Billy somehow gets transported to Asgard, land of the Vikings.

2004-10-15

In "Attack of the Clowns", Grim and Mandy try their darnedest to force Billy to get over his fear of clowns, which they think is irrational. But they carry it too far, when he overcomes this fear enough to want to kill clowns. In "Complete and Udder Chaos", Eris cons Billy, Mandy and Grim into owning her Apple of Discord to watch over, since she is supposedly giving up chaos... or is she?

2004-10-30

Whatever Happened to Billy Whatshisname?: Mandy replaces Billy with Bobby. Just the Two of Pus: When Sperg finds out that the only cure for his acne is the touch of Grim's arm.

2004-11-05

In "Chocolate Sailor", Billy decides to make money by selling mail-order Chocolate Sailor chocolates door to door, only to eat all the chocolate himself, turns into chocolate and eat himself. In "The Good, the Bad, and the Toothless", Billy loses a tooth and meets the Tooth Fairy, but is this mythical character really all he's cracked up to be?

2004-11-12

In "That's My Mummy", Billy stubbornly believes he has been put under a Mummy's Curse. In "Toys Will Be Toys", Billy is forced to give up his favorite toys, the Dinobonoids action figures, but first, he persuades Grim to bring his toys to life, so he can play with them one last time.

2005-02-21

It's school club day, and Billy, Irwin and Mandy all join different clubs. Irwin joins a macramé club, Billy a junior CIA club and Mandy the Secret Snake Club, which turns out to be merely a front for nerds to get revenge on cool kids.

2005-04-08

In "The Bad News Ghouls", when Billy's baseball team (that is playing against Mindy's own team) turns down Mandy as a new teammate because she is a girl, she has Grim disguise her as a boy named Manfred. In "The House of No Tomorrow", Billy, Mandy and Grim's outing to a character-themed amusement park goes south when they stumble upon and enter the abandoned House of Tomorrow.

2005-06-03

In "Wild Parts", a nose-less wizard searches for a new nose so he can smell again... and he selects Billy's bulbous proboscis for it. In "The Problem With Billy", annoyed at Billy's idiocy, Grim consults Billy's father on the subject, but he contradicts this by recounting Billy's life, in which Billy is claimed to actually be a genius!

2005-04-15

In "Happy Huggy Stuffy Bears", Billy, Mandy and Grim all meet a suspicious woman named Serisue, who gives Mandy a paying job as spokesperson for the Happy Huggy Stuffy Bears, and soon, abnormal things happen. In "The Secret Decoder Ring", Billy finds a decoder ring in his cereal box which he tries to use to find the secret of the universe. However, he is not the only one trying to do it like this.

2005-06-10

Billy, Mandy and Grim stumble upon a skull that contains nine wishes, all of which must be granted before it can be freed.

2005-06-17

In "Dream Mutt", Billy's wish for a new dog comes true, thanks to Grim, but can this friendship between a boy and his dog last? In "Scythe For Sale", Billy inadvertently sells Grim's scythe to Irwin.