Crisis on Infinite Mirths

Crisis on Infinite Mirths
Series	Jellystone! The Grim Adventures of Billy & Mandy The Powerpuff Girls Dexter's Laboratory (Crossover)
Season	3 (Jellystone!)
Production code	337 (Jellystone!)
Writer	Jordan Morris (story) Maxwell Atoms (Director) Dodge Greenley (Storyboards)
Broadcast information
Cartoon Network US Premiere	March 6, 2025 (MAX)
Chronological information
Previous Underfist: Halloween Bash (Billy & Mandy) Snowdodio (Jellystone!)	Next Heavens to Murgatroyd (Jellystone!)

Crisis on Infinite Mirths is an episode of Jellystone! that crosses the series over with The Grim Adventures of Billy & Mandy, Dexter's Laboratory, and the Powerpuff Girls. Characters from other Cartoon Network series make additional cameos. It premiered on MAX on March 6, 2025.

It is the first piece of Grim & Evil-related media outside of cameos and video games to be produced since Underfist: Halloween Bash. Greg Eagles, Richard Horvitz, Grey Griffin, Phil LaMarr, and C.H. Greenblatt reprise their roles as Grim, Billy, Harold, Mandy, Hector Con Carne, and Fred Fredburger, respectively.

Synopsis

The episode starts with Cindy talking to Yogi and Boo Boo only for them to ignore her when Boo Boo helps him eat spaghetti using a shovel. Cindy begins to talk to herself about why everyone has ignoring her recently when a strange-looking boy praises her talk. He introduces himself as Billy who was kicked by his own universe. Cindy then encounters another stranger this time a destructive ballerina named Dee Dee who like Billy was also sent here. A robot (the same one from "The Rowdyruff Boys") then attacks Jellystone inside it is a green monkey who declares himself, Mojo Jojo. However he does not realize he is in another universe as he targets the town hall, Cindy brings his attention and reminds him that he's in Jellystone. Mojo Jojo starts to think that his theory is true, which is about space-time, which is the same as what Cindy thinks.

Cindy gathers Mojo, Billy and Dee Dee to the town hall with Huckleberry Hound questioning them on how they got here. Dee Dee was to start a flashback but Cindy stopped it and instead used a Mental Trans-modulator to see through their minds. In each footage, Dee Dee was sent by Dexter using one of his inventions to get rid of her, Billy is thrown into the portal by Grim so he can see another universe but fails to notice that he took the remote with him leaving Grim and Mandy stuck watching a Justice Friends anime and Mojo Jojo was sent here by The Powerpuff Girls in an attempt to get rid of him for good. Cindy felt bad for them after seeing how awful they did to them. Huckleberry then wonders how they all got transported to Jellystone. Cindy takes them to the source known as The Jellystone Timehole, originally a normal hole in space and time but draws attention to the multiverse that brought Mojo, Billy and Dee Dee in the first place. Huckleberry awaits for them to return home but Cindy and Mojo inform them that it has become unstable and it could destroy reality if more characters enter through the portal. Cindy states they have to stay until there's a way to fix it which the three visitors didn't mind.

At night, Cindy and Mojo continue to analyze the time hole showing the instability increasing. Mojo wishes for someone to see what he has more to offer, thinking they should bond more, the two leave the time hole, not aware that someone has recently emerged from it, who turns out to be Fred Fredburger who says his "Yes!" Catchphase.

The next day, Dee Dee and Billy were assigned to Jabberjaw and Doggie Daddy and Augie Doggie to be their guides. Dee Dee and Jabberjaw have fun with each other by breaking stuff and dancing and Billy becomes their "dog" to his delight. Cindy and Mojo Jojo continue to bond with each other and have dinner together. In his house in Genius Grove, Dexter begins to miss Dee Dee after failing to use a robot version of herself and dressing himself as her to imitate her mayhem. In Townsville, the Girls are on patrol and spot Ace and beat him up who was actually watering plants. Ace explains the villains lost their motivation to do crime ever since Mojo's disappearance, making The Girls feel it isn't complete without him. In Billy's house in Endsville, Grim and Mandy are still stuck watching the Justice Friends anime with the former hook on to it.

Back in Jellystone, the time hole goes critical and pops out The Mayor of Townsville where he lands at the town hall where Huckleberry is talking to the citizens and other cartoon characters who stumble upon Jellystone. The two engage in a "Mayor Fight" as more characters start popping out of the time hole. Cindy and Mojo become concerned about the situation, Cindy suggests they need to stay focused on the time hole before The Powerpuff Girls grab Mojo and prepare to take him back but Cindy using her own mecha attacks the girls, Mojo sees what is happening and heads in his mecha and compliments her but before the conversation can be taken further, Dexter attacks Cindy with his Robo-Dexo 2000, wanting Dee Dee back. Soon, more Cartoon Network characters from different universes emerge from portals and engage in a huge battle between them and the Jellystone Residents and Mojo Jojo. Becoming overwhelmed, Mojo confesses his love for Cindy, much to Blossom's confusion. Dexter is somehow intrigued that the residents are fond of Dee Dee. Grim and Mandy find Billy with Doggie Daddy and Augie Doggie, Grim demands the remote but Billy states he gave it to Dee Dee who destroys it after pressing it. Eduardo tells everyone that Jellystone is friendly as proof that he has befriended the Eds. Huckleberry and The Mayor of Townsville end the fight by declaring a truce and that their reality will not explode. This is not the case as Mojo reveal that it will explode in 15 seconds, to everyone's dismay. Mojo and Cindy kiss as the explosion covers them only to be averted after Fred Fredburger clogged up the time hole after he used it as a bathroom.

With the situation resolved, the time hole is being buried to avoid another disaster. Billy and Grim send the Cartoon Network characters back to their own worlds. Dee Dee cries that she's gonna miss Jabberjaw, Dexter feels bad at Mojo and Cindy as he's already started to ship them, Mojo shouldn't worry about it before Grim throws him back into The Powerpuff Girls world. Huckleberry asks Cindy if she is going to be okay, which she suddenly agrees. Later on, Cindy sat on her couch when she suddenly had an idea. She uses a machine which allows her to talk to Mojo anytime. The two reunite with Mojo happy to see her in hopes that nothing bad will happen to Cartoon Network only to change static to Cheese and Fred Fredburger.

Cast

Only characters originating from Grim & Evil are listed here. For a complete listing, see the article on the Cartoon Network wiki.

• Richard Steven Horvitz as Billy, Harold
• Grey DeLisle as Mandy
• Greg Eagles as Grim
• C.H. Greenblatt as Fred Fredburger
• Phil LaMarr as Hector Con Carne

Characters

Only characters originating from Grim & Evil are listed here. For a complete listing, see the article on the Cartoon Network wiki.

• Billy
• Mandy
• Grim
• Fred Fredburger
• Harold (as Mogar)
• Hector Con Carne
• Hoss Delgado (non-speaking)

References to other Cartoon Network shows

In addition to Billy & Mandy, Powerpuff Girls, and Dexter's Laboratory, many other Cartoon Network series are present throughout the special:

• 2 Stupid Dogs
• Johnny Bravo
• Cow & Chicken
• I Am Weasel
• Ed, Edd n Eddy
• Courage the Cowardly Dog
• Time Squad
• Samurai Jack
• Whatever Happened to... Robot Jones?
• Codename: Kids Next Door
• Foster's Home for Imaginary Friends
• Camp Lazlo
• My Gym Partner's a Monkey
• Ben 10
• Squirrel Boy
• Chowder
• The Marvelous Misadventures of Flapjack
• Adventure Time
• Regular Show
• The Powerpuff Girls (2016)

Trivia

• Maxwell Atoms, who directed the special, stated that no Cartoon Network characters from series premiering after 2008 will appear as he states it was "the year CN died". Despite this, characters from Adventure Time and Regular Show, as well as Bubbles' counterpart from the 2016 reboot of the Powerpuff Girls, appear in the special.
  • In another Instagram comment, he stated that Adventure Time and Regular Show were being produced several years before their premiere date, and he and C.H. Greenblatt saw the shows as part of the pre-08 CN era. As for the 2016 reboot counterpart of Bubbles from The Powerpuff Girls, series creator Craig McCracken personally asked for a scene in which a character from the original series attacks a character from the reboot.
• Hoss Delgado is wearing his Underfist uniform during the final battle.
• Billy's mention of a universe where they "got that reboot" is a reference to Atoms' failed attempt at reviving the show with Billy & Mandy Destroy Us All (A Cosmic Horror Musical).

External links

• Crisis on Infinite Mirths on the Cartoon Network Wiki