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The Worst Episodes of The Grim Adventures of Billy and Mandy

Every episode of The Grim Adventures of Billy and Mandy ranked from worst to best. Explore the Worst Episodes of The Grim Adventures of Billy and Mandy!

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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.

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  1. #1 Worst Episode
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    The Grim Adventures of Billy and Mandy Season 1 Episode 10 - Grim vs. Mom
    0.0/10(0 votes)

    #1 - Grim vs. Mom

    S1:E10

    After having a nervous breakdown and leaving the house in the first episode, Billy's mother, Gladys, returns. She meets Grim again and, this time, she plans to destroy him once and for all. When Grim goes to the kitchen for a glass of water, Gladys attacks him and shatters his skeleton. In the end, Grim assures the kids that Gladys has won the battle but not the war.

    Director:Brian Hogan
    Writer:Gord Zajac

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  2. The Grim Adventures of Billy and Mandy Season 1 Episode 11 - Tastes Like Chicken
    0.0/10(0 votes)

    #2 - Tastes Like Chicken

    S1:E11

    With Irwin not answering the phone, Billy's parents missing and Mandy saying she wants "Billy for dinner", Billy and Grim assume Mandy is a cannibal who ate Billy's parents and friends. Looking for proof, Billy and Grim find tiki figures and arrangements for a celebration in Mandy's backyard. Ultimately, it is revealed that they are just celebrating Billy's birthday. Still, Mandy burps out Irwin's glasses.

    Directors:Brian Hogan, John McIntyre
    Writer:Gord Zajac

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  3. The Grim Adventures of Billy and Mandy Season 1 Episode 16 - Hoss Delgado: Spectral Exterminator
    0.0/10(0 votes)

    #3 - Hoss Delgado: Spectral Exterminator

    S1:E16

    Billy, Mandy, and Grim go to the museum on a school trip. There, they meet Hoss Delgado, self-appointed hunter of the paranormal, who upon spotting Grim, tries to eliminate him. Subsequently, Grim and Delgado engage in a fight. Finally, Delgado quits hunting Grim when he realizes Billy and Mandy control him. In the end, Delgado continues his own adventures and is seen fighting a werewolf.

    Director:Brian Hogan
    Writer:Gord Zajac

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  4. The Grim Adventures of Billy and Mandy Season 1 Episode 17 - To Eris Human
    0.0/10(0 votes)

    #4 - To Eris Human

    S1:E17

    While going to the shopping mall with Billy and Mandy, Grim spots the beautiful Eris, the goddess of discord and chaos, and tries to ask her out. However, Eris is not interested in the skinless Grim, but in the muscular Adonis. Then, Eris invites Mandy to join her in creating chaos using the Apple of Discord. Although initially they get along, Eris pulls a prank on Mandy, who subsequently tries to get revenge. In the end, Mandy fools Eris into thinking that Adonis is in the movie theater, and Eris accidentally kisses Grim.

    Director:Dave Brain
    Writer:Gord Zajac

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  5. The Grim Adventures of Billy and Mandy Season 1 Episode 20 - Big Trouble in Billy's Basement
    0.0/10(0 votes)

    #5 - Big Trouble in Billy's Basement

    S1:E20

    After taking the Underworld's "Bad Book" from Grim, Billy becomes possessed by an evil entity. Then, Billy steals Grim's scythe, and uses it to open a portal to summon Yog-Sothoth. In consequence, Mandy calls for Hoss Delgado to battle Billy. It is revealed that the portal can only be sealed by throwing the book into it. As Billy eats the book, Mandy throws Billy himself into the portal, restoring everything to normal. Instants later, a portal opens up and Billy comes out and says they didn't want him there.

    Directors:Robert Alvarez, John McIntyre
    Writer:Gord Zajac

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  6. The Grim Adventures of Billy and Mandy Season 1 Episode 21 - Tickle Me Mandy
    0.0/10(0 votes)

    #6 - Tickle Me Mandy

    S1:E21

    Mandy and her parents leave the city for a day, which makes Billy feel lonely. Then, Grim uses his supernatural powers to create a fake Mandy with pieces of dolls and toys for Billy to play with. However, the "new" Mandy is too aggressive with Billy, and he starts fearing her. The next day, the real Mandy returns home, and promptly destroys the new Mandy while in the see-saw.

    Director:Brian Hogan
    Writer:Gord Zajac

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  7. The Grim Adventures of Billy and Mandy Season 1 Episode 22 - Little Rock of Horrors
    0.0/10(0 votes)

    #7 - Little Rock of Horrors

    S1:E22

    In this musical episode, which pays homage to Little Shop of Horrors, Billy befriends a singing brain-eating meteor (voiced by Voltaire) that falls from the sky. With Billy's help, the creature grows bigger and eventually eats the brains of all people in Endsville (turning them into zombies with glowing green eyes). The last brain he eats is Mandy's, which results in the creature transforming into a brain-eating Mandy. The song featured is BRAINS!, composed by goth artist Voltaire specifically for this episode.

    Director:Robert Alvarez
    Writer:Gord Zajac

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  8. The Grim Adventures of Billy and Mandy Season 1 Episode 23 - Dream a Little Dream
    0.0/10(0 votes)

    #8 - Dream a Little Dream

    S1:E23

    Billy, Mandy, and Grim eat moldy pizza leftovers, and after falling asleep, they have nightmares. Billy dreams of cute bunnies which turn into monsters; Grim dreams of an endless number of bossy Mandys; Mandy dreams of being pulled into a volcano and then commanding demons at the rhythm of music, in a scene that reminisces the Night on Bald Mountain segment of Fantasia. In the end, Mandy reveals that her dream was actually very pleasant, and she eats the last slice of the rotten pizza.

    Director:Dave Brain
    Writer:Gord Zajac

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  9. The Grim Adventures of Billy and Mandy Season 2 Episode 17 - The Grim Show
    0.0/10(0 votes)

    #9 - The Grim Show

    S2:E17

    Grim tries to stop a show from being canceled.

    Directors:Robert Alvarez, John McIntyre
    Writer:Craig Lewis

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  10. The Grim Adventures of Billy and Mandy Season 2 Episode 19 - Sister Grim
    0.0/10(0 votes)

    #10 - Sister Grim

    S2:E19

    Grim thinks he is a nun.

    Directors:Juli Murphy, John McIntyre
    Writer:Gord Zajac

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  11. The Grim Adventures of Billy and Mandy Season 2 Episode 20 - Go Kart 3000!
    0.0/10(0 votes)

    #11 - Go Kart 3000!

    S2:E20

    Grim and the children enter a kart competition.

    Directors:Randy Myers, John McIntyre
    Writer:Gord Zajac

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  12. The Grim Adventures of Billy and Mandy Season 2 Episode 21 - Terror of the Black Knight
    0.0/10(0 votes)

    #12 - Terror of the Black Knight

    S2:E21

    Billy tries to show off at the Renaissance festival.

    Director:Juli Murphy
    Writer:Craig Lewis

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  13. The Grim Adventures of Billy and Mandy Season 2 Episode 22 - Battle of the Bands
    0.0/10(0 votes)

    #13 - Battle of the Bands

    S2:E22

    Grim sings in a band.

    Director:Robert Alvarez
    Writer:Craig Lewis

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  14. The Grim Adventures of Billy and Mandy Season 2 Episode 23 - The Halls of Time
    0.0/10(0 votes)

    #14 - The Halls of Time

    S2:E23

    Billy and Mandy visit the Halls of Time.

    Directors:Randy Myers, John McIntyre
    Writer:Gord Zajac

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  15. The Grim Adventures of Billy and Mandy Season 2 Episode 25 - Chicken Ball Z
    0.0/10(0 votes)

    #15 - Chicken Ball Z

    S2:E25

    Mandy eats a magical ball of chicken.

    Director:Juli Murphy
    Writer:Ben Spergel

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  16. The Grim Adventures of Billy and Mandy Season 3 Episode 14 - Bully Boogie
    0.0/10(0 votes)

    #16 - Bully Boogie

    S3:E14

    After failing to scare a fifteen-year-old, the Boogeyman decides to visit his old middle-school victim, Grim. Grim remembers how Boogie used to be a bully, and demands an apology from him. Boogie disappears to the Underworld, taking Billy with him. Mandy and Grim follow Boogie, and to settle their differences Mandy suggests having a scaring contest, in which whoever can scare a kid the most wins. Boogie's transformation as a werewolf is not enough to scare the kid, but Grim's transformation into a giant, horrific rubber duck is.

    Director:Juli Murphy
    Writers:Zena Leigh Logan, James Silverman, Spencer Laudiero

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  17. The Grim Adventures of Billy and Mandy Season 3 Episode 15 - Here Thar Be Dwarves!
    0.0/10(0 votes)

    #17 - Here Thar Be Dwarves!

    S3:E15

    As Billy walks into the woods to have a picnic, Yogi and a giant, feral version of Boo-Boo (from The Yogi Bear Show) come to steal his basket, and he escapes by hiding in a cave. Billy is taken to the mushroom lair of the dwarfs where King Beardbottom tells him the story on how the different races split the food-services industry, after the conference of Rivendell. The king sends Billy to infiltrate the elves' cookie factory to deactivate their force field, so the dwarves can assault the factory. After a fierce battle (censored out "for younger viewers", by a single clip of a pink koala continuously licking a eucalyptus leaf) and Billy's words, the elves and dwarves decide to work together and split the profits.

    Director:Robert Alvarez
    Writers:Gord Zajac, C.H. Greenblatt

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  18. The Grim Adventures of Billy and Mandy Season 3 Episode 16 - Which Came First?
    0.0/10(0 votes)

    #18 - Which Came First?

    S3:E16

    While going to a science museum, Billy and Mandy's school bus breaks down in the middle of the desert. After digging for fossils, Billy, Mandy and Grim wander around and find an abandoned mine, where Billy is captured by a giant, mutant chicken. When Mandy and Grim go to rescue him, they find an underground laboratory from the days of the Cold War where mutant chickens were created. The mountain makes eruption, the chickens are roasted by lava, and the whole class obtains food so they do not have to resort to cannibalism.

    Director:Brian Sheesley
    Writers:Matt Sullivan, Vincent Waller

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  19. The Grim Adventures of Billy and Mandy Season 3 Episode 17 - Substitute Teacher
    0.0/10(0 votes)

    #19 - Substitute Teacher

    S3:E17

    Billy's first cousin from the center of the Earth, Nergal Jr. goes to school for the first time, but he is worried that people may not like him. Soon enough, Junior becomes bullied by Sperg, with Miss Butterbean's allowance. Billy suggests Junior to use his shapeshifting abilities to take on the form of Miss Butterbean, so Junior can help him pass a math test. Junior likes the idea, but he morphs into Miss Butterbean to get revenge on Sperg instead. Sperg is seen living in the center of the Earth as Junior's pet.

    Director:Shaun Cashman
    Writers:Maxwell Atoms, Chris Reccardi

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  20. The Grim Adventures of Billy and Mandy Season 3 Episode 18 - Super Zero
    0.0/10(0 votes)

    #20 - Super Zero

    S3:E18

    After watching a TV show, starring Captain Heifer and his Heifer Farms Brand Yogurt, Billy asks Grim to turn him into a superhero with the power of squeaking and throwing yogurt from his armpits. With his wish granted, Billy goes to outer space to fight the Evil Empire, but the planet he visits is mostly inhabited. Despite being free of Billy, Grim still has to deal with Billy's equally dumb father, Harold. After Billy fills the alien planet with yogurt, he returns home to be "normal".

    Directors:Juli Murphy, Phil Cummings
    Writer:Brett Varon

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  21. The Grim Adventures of Billy and Mandy Season 3 Episode 19 - Sickly Sweet
    0.0/10(0 votes)

    #21 - Sickly Sweet

    S3:E19

    Trying to get revenge at Mandy for bossing them all the time, Billy and Grim put her in the "Mask of the Beast". Mandy must be nice and friendly while wearing the mask, or else she will become a hideous monster. Failing to remove the mask herself, and struggling to be kind to Billy and Grim, Mandy gradually turns into the beast. Billy and Grim ask Mandy to smile while she gives them a sponge bath, but this turns out to be too hard for Mandy. She fully transforms into the beast and punishes them instead.

    Directors:Robert Alvarez, Phil Cummings
    Writer:Maxwell Atoms

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  22. The Grim Adventures of Billy and Mandy Season 3 Episode 20 - Bearded Billy
    0.0/10(0 votes)

    #22 - Bearded Billy

    S3:E20

    When Billy sees his father shaving, he decides having a beard is cool and buys "Hair Raiser Tonique", a hair-growing formula. Grim casts a spell on the tonic to make its effects appear faster, but Billy exaggerates the quantity and grows hair in all his body. Billy is mistaken for the Sasquatch, and a reward is offered for his capture. Hoss Delgado also receives the tonic and is captured and exhibited as the Sasquatch, while Mandy collects the reward.

    Director:Brian Sheesley
    Writers:Gord Zajac, Brian Larsen

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  23. The Grim Adventures of Billy and Mandy Season 3 Episode 21 - The Nerve
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    #23 - The Nerve

    S3:E21

    After being bullied again by Sperg, Billy asks Grim to shrink him to enter Mandy's head to steal her "nerve". After Billy swallows the raw nerve, a polyp-like organism, Mandy becomes timid and scared of everything while Billy becomes tough and mean. While Billy goes to get revenge at Sperg, Mandy enters Billy's head to recover her nerve. Mandy recovers her tough and cynical attitude without her nerve, which is successfully retrieved from Billy and banished from Endsville.

    Director:Shaun Cashman
    Writers:Jim Schumann, Gord Zajac

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  24. The Grim Adventures of Billy and Mandy Season 3 Episode 22 - Test of Time
    0.0/10(0 votes)

    #24 - Test of Time

    S3:E22

    When Billy forgets to do his history homework, Grim gives him a universal remote control to alter time and space so he can go back in time and finish his report. Billy and Mandy travel to the American Revolution, to prehistoric times, and even to the future, where they meet an aged Billy who is just finishing the report. After a struggle for the remote, Billy ends up again in the Prehistory and the remote breaks. Fast forward into the present, every person is dumb like he is and shares his characteristic big nose, including Mandy and Irwin.

    Directors:Robert Alvarez, Shaun Cashman, Brian Sheesley
    Writers:Gord Zajac, Paul McEvoy

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  25. The Grim Adventures of Billy and Mandy Season 3 Episode 23 - A Kick in the Asgard
    0.0/10(0 votes)

    #25 - A Kick in the Asgard

    S3:E23

    During a thunderstorm, a lightning bolt hits Grim's scythe, transporting Billy to Asgard, land of the Norse gods. Mandy and Grim go searching for him, while a Viking wearing Billy's shirt remains at his house as a substitute. In Asgard, Billy learns about the endless battle in Valhalla, in which if a warrior dies, he is resurrected to continue fighting. Billy is surprisingly good at killing other Vikings, so Mandy and Grim are unable to convince him to return home.

    Directors:Robert Alvarez, Juli Murphy, Brian Sheesley
    Writer:Maxwell Atoms

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Worst Episodes Summary

"Grim vs. Mom" is the worst rated episode of "The Grim Adventures of Billy and Mandy". It scored /10 based on 0 votes. Directed by Brian Hogan and written by Gord Zajac, it aired on 7/19/2002. This episode scored 0.0 points lower than the second lowest rated, "Tastes Like Chicken".