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The Best Episodes of The Grim Adventures of Billy and Mandy Season 4

Every episode of The Grim Adventures of Billy and Mandy Season 4 ranked from best to worst. Discover the Best Episodes of The Grim Adventures of Billy and Mandy Season 4!

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 &...
Genres:AnimationComedyKids

Season 4 Ratings Summary

"The Secret Snake Club" is the best rated episode of "The Grim Adventures of Billy and Mandy" season 4. It scored 7.9/10 based on 100 votes. Directed by Juli Murphy, Shaun Cashman and written by Maxwell Atoms, C.H. Greenblatt, it aired on 2/25/2005. This episode is rated 0.5 points higher than the second-best, "He's Not Dead, He's My Mascot".

  • The Secret Snake Club
    7.9/10100 votes

    #1 - The Secret Snake Club

    Season 4 Episode 1 - Aired 2/25/2005

    At school, Billy, Mandy, and Irwin look for a club to join. Irwin plans to join the Macrame club to meet girls; Billy inquires on the Junior CIA club, which forcefully recruits him; Mandy joins the "Secret Snake Club", a snake-themed club consisting of three geeks. The nerds reveal that their "secret agenda" is to resurrect Shnissugah, a giant snake which lived hundreds of years ago in Canada, to take revenge against the popular kids, but they lack the power of the Underworld to do so. Mandy calls for Grim, who proceeds to revive Shnissugah through the internet. Billy, as a junior agent of the CIA, stops a criminal plan by Irwin, who was using the Macrame club for personal gain; and Shnissugah turns out to be a tiny, 8-cm (3.14-in) long, harmless snake.

    Director: Juli Murphy, Shaun Cashman

    Writer: Maxwell Atoms, C.H. Greenblatt

  • He's Not Dead, He's My Mascot
    7.4/1077 votes

    #2 - He's Not Dead, He's My Mascot

    Season 4 Episode 2 - Aired 4/1/2005

    When Billy and Mandy's school is preparing for a big game, Mindy entrusts the care of the school's mascot, Fluffy Cat, to Billy, to protect him from being kidnapped by the rival team, the Booty Heads. At Billy's house, Fluffy Cat is a disaster, so Billy's mom throws him into the basement, where the cat gets inside Grim's trunk, absorbing its powers. A giant Fluffy Cat appears just before the game wreaking havoc.

    Director: Juli Murphy, Phil Cummings, Eddy Houchins

    Writer: Alex Almaguer, Nina G. Bargiel

  • Hog Wild
    7.4/1066 votes

    #3 - Hog Wild

    Season 4 Episode 3 - Aired 4/1/2005

    As Billy is tired of all the rules in his house, he cannot resist the urge to try his father's new motorcycle. The motorcycle breaks down, and Billy asks Grim to repair it. Grim's scythe turns the motorcycle into a wild, supernatural vehicle, which transforms Billy's parents and everyone around it into undead creatures and motorized monsters. Mandy makes Billy tell the truth about breaking the motorcycle in the first place, at which point his parents and everyone else return to normal.

    Director: Shaun Cashman, Eddy Houchins

    Writer: Brett Varon

  • The Bad News Ghouls
    7.5/1069 votes

    #4 - The Bad News Ghouls

    Season 4 Episode 4 - Aired 4/8/2005

    After Billy's baseball team loses badly against Mindy's, Grim decides to coach them. Mandy is not allowed on the team, as Billy is reluctant to let girls play, although he does not realize Mindy is a girl too. Mandy puts on a baseball cap and, assuming the role of "Manfred", pitches for Billy's team anyway. With additional help from ghoulish players which played in the Underworld Little Leagues alongside Grim, Billy's team wins when Pud'n hits a home run.

    Director: Brian Sheesley

    Writer: Vincent Waller, Richard Steven Horvitz

  • The House of No Tomorrow
    7.4/1071 votes

    #5 - The House of No Tomorrow

    Season 4 Episode 5 - Aired 4/8/2005

    While at Sassy Cat Land, the theme park dedicated to Sassy Cat (and to ridiculously long lines), Billy, Mandy, and Grim stumble upon a closed attraction, a futuristic "house of tomorrow". Inside, they find Master-Control, a sentient and autonomous, thinking, feeling artificial intelligence computer program claiming to know everything (and wishing death upon the trio when Billy angers him), and Tom Smith, a tour guide that became trapped in the house when it closed forty years ago. Tom explains that the attraction closed when a kid, actually Billy's dad, annoyed Master-Control with his dumb questions, and the robots started attacking the humans. Billy, Mandy and Grim exit the house unharmed, but Tom misses his opportunity to escape and is left behind again.

    Director: Robert Alvarez

    Writer: Alex Almaguer, Nina G. Bargiel

  • Happy Huggy Stuffy Bears
    7.7/1073 votes

    #6 - Happy Huggy Stuffy Bears

    Season 4 Episode 6 - Aired 4/15/2005

    After a trip to the mall, Mandy becomes the spokesperson for Happy Huggy Stuffy Bears, a new stuffed toy in town. After the success of her commercial, Mandy gives away stuffed bears to other children, who start wreaking havoc in the city. Eris, the goddess of chaos, is behind the toys, which mind-control the children into creating chaos. Mandy decides not to share control of the world with Eris, and orders Grim to destroy the toys.

    Director: Brian Sheesley

    Writer: Spencer Laudiero, Nina G. Bargiel

  • The Secret Decoder Ring
    8.1/10169 votes

    #7 - The Secret Decoder Ring

    Season 4 Episode 7 - Aired 4/15/2005

    When Billy finally gets a "secret decoder ring" in his Blasto Bits cereal, he receives a holographic message from a strange creature who speaks about finding the "Secret of the Universe" in an abandoned mine shaft. All the other children of Endsville, also with decoder rings, race to the mine to be the first one to get the Secret. The entire effort is revealed to be a trap laid by Lubbermouth, a worm-like creature from Grim's past, who wishes to free herself from the curse of guarding the Secret. When Mindy looks down at the pit, she becomes the new guardian of the Secret and has to stay there forever.

    Director: Robert Alvarez, Randy Myers, Shaun Cashman

    Writer: Mike Diederich, Zena Leigh Logan

  • Wild Parts
    7.0/101 votes

    #8 - Wild Parts

    Season 4 Episode 8 - Aired 6/3/2005

    One night a strange odor travels through the city, prompting the noses of all the people, including Billy's, to follow it. The next night, Mandy, who is noseless, and Grim decide to wait outside Billy's house for the event to repeat. When the odor reappears, the nose parade leads them to the shopping mall, where they meet a "Nasalmancer", a nose wizard who is trying to take over other people's noses since he lost his own. Billy recovers his nose, but slices it in two, and gives one half to the Nasalmancer.

    Director: Shaun Cashman

    Writer: Richard M. Burton, William Reiss

  • The Problem with Billy
    NaN/100 votes

    #9 - The Problem with Billy

    Season 4 Episode 9 - Aired 6/3/2005

    When Billy goes into the mud for the fifth time in the day while wearing his white tuxedo before a wedding, Grim tries to figure out why Billy is so stupid. Billy's dad recounts Billy's life from his birth until he met Mandy and explains that Billy is not dumb, but actually a genius with a certified "Honorary Genius Degree". It is quite evident to Grim that Billy's problem is his equally dumb father.

    Director: Juli Murphy

    Writer: Brett Varon

  • Wishbones
    7.0/101 votes

    #10 - Wishbones

    Season 4 Episode 10 - Aired 6/10/2005

    After Grim's robe comes out of the washing machine, Billy and Mandy find Thromnambular, a talking skull with ruby eyes and a number nine imprinted on his forehead. Grim tells them that the skull is a magical artifact imprisoned on Earth that must grant his nine wishes to be free. When Mandy asks Grim why he has not used any of the wishes, Grim tells her that the skull will corrupt the wishes and end up affecting the wisher.

    Director: Juli Murphy, Brian Sheesley

    Writer: Maxwell Atoms, Paul McEvoy, Mike Diederich, C.H. Greenblatt, Alex Almaguer, Scott Morse, Shaun Cashman, Thurop Van Orman, Ian Wasseluk

  • Dream Mutt
    7.0/101 votes

    #11 - Dream Mutt

    Season 4 Episode 11 - Aired 6/17/2005

    When Billy gets the opportunity to adopt one of four dogs, he says he wants them all. Grim uses his scythe to magically combine the dogs and create Billy's dream dog, who calls himself Wiggy Jiggy Jed. Although initially Billy and Jed are best friends, their relationship falls apart when Billy tells Jed to sleep outside. Jed uses the powers of Grim's trunk to build a giant machine to capture the beds of all people. Billy throws Jed a dish of primordial ooze and he dissolves.

    Director: Shaun Cashman

    Writer: Brett Varon

  • Scythe for Sale
    NaN/100 votes

    #12 - Scythe for Sale

    Season 4 Episode 12 - Aired 6/17/2005

    To raise money to buy Sea-Critters (similar to Sea-Monkeys), Billy has a garage sale where he sells Grim's scythe to Irwin for less than two cents. With the great mystical strength and power of the scythe, Irwin hypnotizes Mandy and takes her on a romantic date. Billy and Grim try to recover the scythe, and when they do Mandy gets out of the trance. Irwin is punished by being transformed into a tiny sea-critter and placed in Billy's fish bowl.

    Director: Robert Alvarez

    Writer: Harriet Kim

  • Jeffy's Web
    7.0/101 votes

    #13 - Jeffy's Web

    Season 4 Episode 13 - Aired 6/24/2005

    When Billy gets under his house's foundation, he encounters again his "son", Jeff the Spider, who has just laid eggs. Jeff tries to make things right with Billy so he can take care of the baby spiders, as he is going to die after the eggs hatch. Naturally terrified of seeing Jeff, Billy runs away and a wild car chase ensues. The eggs hatch, and Grim decides to refill Jeff's hourglass that represents his lifetime so he does not die and can continue to scare Billy.

    Director: Robert Alvarez, Eddy Houchins

    Writer: Maxwell Atoms, Louie del Carmen

  • Irwin Gets a Clue
    NaN/100 votes

    #14 - Irwin Gets a Clue

    Season 4 Episode 14 - Aired 6/24/2005

    After seeing Billy, Mandy and Grim battling a strange creature, Irwin again feels rejected by Mandy. Hoss Delgado, spectral exterminator, appears to help Mandy destroy the monster. Delgado decides to have Irwin as his sidekick and train him to be "cool" to win Mandy's love. Irwin gets an attire like Delgado's, and attaches an egg beater to his right hand. Delgado releases a monster so Irwin can fight it and impress Mandy, but he is humiliated anyway. Mandy tells Irwin he is just a nerd, and Billy tries to assure him that being a nerd is not such a bad thing after all.

    Director: Sue Perrotto

    Writer: Zena Leigh Logan, Jim Schumann

  • Duck!
    7.0/101 votes

    #15 - Duck!

    Season 4 Episode 15 - Aired 6/24/2005

    After Grim has a nice dream, a nightmare escapes the back of his head in the shape of a supernatural, invisible duck that makes farting noises. The duck follows Grim everywhere, causing him embarrassment with the non-existent farts, and to end up in jail. The duck repeats the strategy, following other citizens, including Irwin and Billy's dad, resulting in all of them going to jail too. The duck tries to annoy Mandy, but she remains imperturbable by its presence. The duck disappears and Principal Goodvibes is really angry, and he gives Mandy 75 days of detention.

    Director: Juli Murphy, Randy Myers

    Writer: Maxwell Atoms, C.H. Greenblatt

  • Aren't You Chupacabra to See Me?
    NaN/100 votes

    #16 - Aren't You Chupacabra to See Me?

    Season 4 Episode 16 - Aired 6/24/2005

    After being utterly bored of watching the same movie 60 times in a row, Grim takes Billy and Mandy to "Underworld Video" where they rent "The Legend of Chupacabra". While Billy watches the tape, a small, pink chupacabra emerges from his television and Billy decides to keep it as a pet, naming it Daisy. Mandy and Grim convince Billy that he is inept in taking good care of pets, and they return the blood-sucking chupacabra to the videotape.

    Director: Shaun Cashman

    Writer: Ian Wasseluk, Jeremy J. Bargiel

  • Zip Your Fly
    7.0/101 votes

    #17 - Zip Your Fly

    Season 4 Episode 17 - Aired 6/27/2005

    Billy and Mandy find a supernatural zipper from Grim's robe, and while Billy uses it to create mischief, Mandy gets herself in a sticky situation.

    Director: Juli Murphy, Phil Cummings

    Writer: Maxwell Atoms, Louie del Carmen

  • Puddle Jumping
    NaN/100 votes

    #18 - Puddle Jumping

    Season 4 Episode 18 - Aired 6/27/2005

    When Billy jumps into a supernatural puddle (a Cosmic Sinkhole, according to Grim), it takes him to the home of Granny Applecheeks, who wants to bake him into a pie. It is up to Mandy and Grim to save him if the puddle can take them to the right place.

    Director: Sue Perrotto

    Writer: Mike Diederich

  • Runaway Pants
    7.0/101 votes

    #19 - Runaway Pants

    Season 4 Episode 19 - Aired 6/28/2005

    At school it is time for the "Presidents Fitness Test", but Billy is absolutely unfit for exercise. On the other hand, Nergal Junior uses his shape-shifting powers to become fit at will and excel in every test. Billy asks Junior to transform into a pair of pants that he can wear, so he can run fast and win the 50-meter race. Since Junior has never attempted to transform into inanimate objects he cannot stop running and cannot revert to his human form. Billy keeps running forever while he becomes a national sensation known as the "Fitness Lad". It is revealed that the story was just all a fabrication created by the narrator, who parodies The Twilight Zone.

    Director: Sue Perrotto

    Writer: Maxwell Atoms, Alex Almaguer

  • Scythe 2.0
    NaN/100 votes

    #20 - Scythe 2.0

    Season 4 Episode 20 - Aired 6/28/2005

    After Grim's scythe fails to open a portal, he decides to sharpen it, but the blade breaks. Billy, Mandy and Grim go to the Underworld to meet F (a parody of James Bond's "Q"), who is in charge of the Underworld secret gadgets. F unveils Scythe 2.0, which is a new-and-improved sentient, autonomous, thinking and feeling computerized scythe, that Grim uses while his classic scythe is being repaired. When Mandy tells Grim to do his usual humiliating chores, Grim delegates the work to Scythe 2.0, which rebels and decides to reap by itself, starting with Billy and Mandy. Grim saves the kids, takes Scythe 2.0 back to the Underworld, and returns with his old scythe.

    Director: Phil Cummings

    Writer: Maxwell Atoms, Mike Diederich

  • The Firebird Sweet
    7.0/101 votes

    #21 - The Firebird Sweet

    Season 4 Episode 21 - Aired 6/29/2006

    When Billy buys a new cereal, a phoenix emerges from the box and attaches to his head, annoying everybody. Since the phoenix cannot be removed because it revives every time it is destroyed, Billy, Mandy and Grim seek help by going to the factory where the cereal is produced, which is run by Eris, the goddess of chaos. Mandy tricks the phoenix into leaving Billy and attacking Eris instead. It is revealed that all the events were really an episode-within-an-episode.

    Director: Shaun Cashman

    Writer: Drew Neumann, Aaron Springer

  • The Bubble with Billy
    NaN/100 votes

    #22 - The Bubble with Billy

    Season 4 Episode 22 - Aired 6/29/2006

    When Billy desperately wants chewing gum at school, Grim gives him a bottomless gumball machine, but warns him not to swallow the gum. Billy ignores Grim's warning and starts swallowing the gum, causing him to constantly burp bubbles that fill the entire city. Mandy and Grim try to get Billy to cough the remaining gum that he has in his stomach, but instead Billy swallows the entire gumball machine. Billy coughs huge amounts of gum all over the city and ends up with a supernatural rash from another interdimensional world.

    Director: Juli Murphy, Russell Calabrese

    Writer: Brett Varon

  • Billy Idiot
    7.0/101 votes

    #23 - Billy Idiot

    Season 4 Episode 23 - Aired 6/30/2005

    When Billy is accepted to Mrs. Pollywinkle's dancing academy, his father tries to persuade him to forget about dancing because of his own bad experience as a child during a recital. At the academy it is revealed that Mrs. Pollywinkle is actually a powerful, dark witch set on stealing Billy's soul. Billy's dad unexpectedly comes to rescue, challenging Mrs. Pollywinkle to a dance competition, which he wins using a powerful dance move. Billy's dad tells Billy to follow his dream of becoming a dancer if he so wishes, but Billy changes his mind saying that dancing is for girls. Note: This episode was inspired by the movie Billy Elliot.

    Director: Sue Perrotto

    Writer: Alex Almaguer, Ian Wasseluk

  • Home of the Ancients
    NaN/100 votes

    #24 - Home of the Ancients

    Season 4 Episode 24 - Aired 6/30/2005

    When Grim misuses his powers to play bowling with asteroids, he is taken to the Underworld court and sentenced to 50 hours of community service. At a retirement home, Billy, Mandy, and Grim go to the supernatural wing, which is the Home of the Ancients, a place for retired, geriatric monsters. Grim meets his childhood idols, the Bride of Frankenstein, Dracula, and the Wolf Man. Despite Billy's comments that the old monsters are finished, Grim sets out to prove that they are still scary. Grim tries to scare a bunch of kids in the woods, but the old monsters ruin his attempt and he walks out on them.

    Director: Robert Alvarez, Sue Perrotto

    Writer: C.H. Greenblatt, Nina G. Bargiel