Season 4

Super Zero / Sickly Sweet

Billy becomes a superhero, while Grim deals with Billy's inept dad; Billy and Grim try to teach Mandy how to be kind and loving, but their plan backfires.

Bearded Billy / The Nerve

Test Of Time / A Kick in the Asgard

Shadows at 5'o clock

Complete and Udder Chaos / Attack Of The Clowns

Whatever Happen To Billy What this name? / Just The Two Of Pus

Chocolate Sailor / The Good, The Bad and The Toothless

Toys Will Be Toys / That's My Mummy

Secret Snake Club

Wild Parts / The Problem With Billy

He's Not Dead, He's My Mascot / Hog Wild

The Bad News Ghouls / The House of No Tomorrow

Happy Huggy Stuffy Bears / Secret Decoder Ring