Episodes
- S3 E1 - Super ZeroDecember 31, 200012minBilly becomes a super hero in a galaxy far far away while Grim and Billy's Dad build a shed and a bridge to each other's hearts.This video is currently unavailable
- S3 E2 - Sickly SweetDecember 31, 200011minBilly and Grim use the Mask of the Beast to teach Mandy how to be sweet and loving, with disastrous consequences.This video is currently unavailable
- S3 E3 - Bearded BillyDecember 31, 200012minBilly discovers that too much of a good thing can have scary side effects when he takes Grim's special hair tonic.This video is currently unavailable
- S3 E4 - The NerveDecember 31, 200011minBilly steals Mandy's nerve to confront Sperg and Mandy learns that inner strength comes from within.This video is currently unavailable
- S3 E5 - Test of TimeDecember 31, 200012minBilly and Mandy research their history reports first hand, changing the course of history forever.This video is currently unavailable
- S3 E6 - A Kick in the AsgardDecember 31, 200011minAn inadvertant interdimensional exchange program takes Billy to Valhalla while Grim and Mandy meet someone even more obnoxious than he is.This video is currently unavailable
- S3 E7 - Attack of the ClownsDecember 31, 200013minGrim and Mandy plan an intervention to break Billy of his fear of clowns, but they don't know how justified that fear is.This video is currently unavailable
- S3 E8 - Complete and Utter ChaosDecember 31, 200010minEris has vowed to give up chaos leading Grim, Billy, and Mandy into temptation.This video is currently unavailable
- S3 E9 - Whatever Happened to Billy WhathisnamDecember 31, 200012minBilly displeases Mandy so she replaces him with Bobby, a kid with his own issues.This video is currently unavailable
- S3 E10 - Just the Two of PusDecember 31, 200011minSperg's face breaks out and the only cure is the touch of Grim's arm and getting to Grim means being nice to Billy.This video is currently unavailable
- S3 E11 - Chocolate SailorDecember 31, 200012minBilly gets a job selling chocolate sailors and becomes his own best customer.This video is currently unavailable
- S3 E12 - The Good the Bad and the ToothlessDecember 31, 200011minBilly loses a tooth and meets the tooth fairy who's not all he's cracked up to be.This video is currently unavailable
- S3 E13 - That's My MummyDecember 31, 200011minBilly is plagued by the curse of the mummy.This video is currently unavailable
- S3 E14 - Toys will be ToysDecember 31, 200012minGrim brings the Dinobonoids to life so Billy can say his final goodbye but the toys aren't ready to be outgrown.This video is currently unavailable
- S3 E15 - The Secret Snake ClubDecember 31, 200021minMandy joins the Secret Snake Club where they call forth an ancient entity to save nerds from persecution.This video is currently unavailable
- S3 E16 - The Bad News GhoulsDecember 31, 200012minBaseball gets scary when Grim brings in some dead ringers to help Billy and Irwin defeat Mindy's team.This video is currently unavailable
- S3 E17 - The House of No TomorrowDecember 31, 200011minBilly, Grim, and Mandy visit a closed amusement park attraction and find out why they should fear the future.This video is currently unavailable
- S3 E18 - Wild PartsDecember 31, 200012minBilly's nose is lured away by a Nasalmancer looking for the ultimate scent-sation.This video is currently unavailable
- S3 E19 - The Problems with BillyDecember 31, 200011minBilly's Dad regales Grim and Mandy with tales of Billy's mental prowess.This video is currently unavailable
- S3 E20 - Happy Huggy Stuffy BearDecember 31, 200012minMandy's burgeoning acting career unleashes toys with an ulterior motive.This video is currently unavailable
- S3 E21 - The Secret Decoder RingDecember 31, 200011minAn acquaintance from Grim's past attempts to entice Endsville's children to free her from an ancient high school curse.This video is currently unavailable
- S3 E22 - WishbonesDecember 31, 200022minA mystical skull with nine wishes to bestow grants desires with a side of poetic justice.This video is currently unavailable
- S3 E23 - Dream MuttDecember 31, 200012minGrim concocts the perfect dog for Billy, but the dog has his own ideas about who the master is.This video is currently unavailable
- S3 E24 - Scythe for SaleDecember 31, 200011minAbsolute power corrupts Irwin absolutely when Billy sells him Grim's scythe by mistake.This video is currently unavailable
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