Dee-Dee refuses any kind of help from Dexter on her science project, when Dee-Dee shows Dexter her show-and-tell product, he criticises it heavily and offers his own..contributions

After Dexter ""fires"" Dee Dee, he realizes that his lab needs chaos.

It's not a great day for science when Dexter has bad luck due to the position of the stars.

Mom makes Dexter go outside and ride a bike, thing that turns into a Dexter-Dee Dee chase.

Dee Dee and Dexter win a free pass to Professor Hawk's magic factory after finding the golden diskette.

Dexter newest creation gives Mom super powers.

In a whole parody of ""Speed Racer"", Dexter and Mandark compete on a race.

On his way home, Dexter gets followed by a labrador, when he teaches him to speak, the dog becomes even more annoying.

The story of how Dexter was born and how he built his lab, in the style of a musical.

Dexter's untested formula causes all plants in the garden to become dangerous.

After Dexter eats a giant burrito he believes he's going to die, so he makes a list of everything he must do before that time comes. (Including, make Mom and Dad happy, do dishes, free Robots, make World Peace, end World's hunger, learn to dance, make Dee Dee happy, shut down the Main System... and tell Mom and Dad about the secret laboratory).

Dexter and Dee Dee go to the dumps to retrieve Dee Dee's lost teddy bear.

When Dexter's favorite show gets interrupted by an emergency, he searches all town trying to find it and solve so regular broadcast returns.

Dexter combines himself with bubble gum to become more stretchable.

Dexter heals a turtle by giving him loads of modern, techno stuff.

After being kicked out of Dexter's Lab (AGAIN) She goes and plays in her ""lab"".

Dexter and Dee Dee compete in various games chosen by Dexter.

Dee Dee steals the nuclear atom that Dexter needs to make his invention work, but she doesn't know that it will explode if Dexter doesn't find it on time.

Dexter, Monkey, The Justice Freinds, Dee-Dee, her imaginary freind Coosie, Mandark, his parents, and Dexter's Parents participate in a cross-country race

After Dexter gets bitten by a clown, he turns into one every night.

Dee Dee, who's not exactly good at singing, gets Dexter's help on getting a better voice, but not the voice Dexter was expecting.

Dexter makes himself invisible to make sure Mom and Dad give him what he wants for his birthday, the Ultimate Mayor Glory Action Figure.

A confusion at the supermarket makes Dexter go home with a different, yet extremely scientific, family; but who is home with his real family?

When Dee Dee refuses to flush their gold fish down the toilet, the ghost of the fish haunts them.

Not interested in hearing Dee Dee's long-winded story, Dexter gives her a silencing formula to keep her quiet, but it instead turns her into a giant monster still bent on telling her story. When he realizes that nothing can make her quiet, he becomes a giant monster himself.

After Dexter did something really bad at school, he gets her mother called, so to not ruin his reputation, he turns Dee Dee into Mom.

Dee Dee's imaginary friend comes to life and annoys Dexter. Dexter ends up wishing him away, then he realizes he made a terrible mistake.

To avoid the bath, Dexter decides to laminate himself.

Dee Dee photographs Dexter's secret lab.

To learn more about girls, Dexter camouflages himself and enters Dee Dee's room, where she is having a sleepover with her friends Lee Lee and Mee Mee. He gets caught by the girls, who force him to take part in their activities.

Dexter must go to the back of the school bus to retrieve his pencil, where another kid got lost years ago.

While at the beach, Dee Dee (who's wearing a mermaid swimsuit) gets captured by a maniac sailor so Dexter must rescue her.

Dexter goes to Mars to find alien life forms.

Dexter overloads the energy of the laboratory, so he makes numerous tries to reload it.

A new female villian named Peltra wants Monkey's Coat.

Dexter and Dee Dee must stop Dad from eating Mom's muffins.

Dee Dee's stuffed animals come to life and roam the house. Dee Dee and Dexter must get them before Mom and Dad find out.

After Dexter and Dee Dee destroy Dad's bowling trophy, they are sent to each other's room.

Dad encourages Dexter to become the king of snow, as he was in his early days, until someone beated him.

Dee Dee inflates Dexter's hydro-plasmatic suit and constantly floats in the air, prompting Dexter to bring her down.

Krunk stays awake all night watching The Puppet Pals Show Marathon, so his brain starts playing him tricks.

Dexter ends up in the "old part of the lab" where his earliest inventions, long since forgotten, are not too happy to see him. They are mad at him for saying they were his greatest inventions, then moved on to another great invention.

Dexters parents accidentally sell Dexter's latest invention, and it is bought by Mandark.

Dexter finds out that all of Mandark's plans are taken from a comic book. This way, he can get ready.

Mandark drops technology and starts being more in touch with nature.

Decxter and Mandark are both outperformed by a new girl attending the school, jealous, they become allies to deal with her.

Dexter creates an ink in which lets him command them to do whatever he wants them to do. Although when Mandark gets a hold of it, Dexter is the one being the slave.

Both Dexter and Mandark's fathers intercede during another of Dexter and Mandark's petty squabbles, but their effort to get along with one another backfire, and the two also soon engage in a heated fight.

Dexter is trying to build his lab blue, but Dee Dee keeps making it pink.

Two robots escape from Dexter's lab in order to have a better life.

It's Mother's Day and Mom can't take that Dad, Dee Dee and Dexter do all the housework.

Dee Dee must save Dexter who is a slave in a distant galaxy.

Dexter takes piano classes from a man that looks a lot like Paul Williams.

Numerous factors like getting up early, being the first ones there, fishing clothes and other accesories, will not allow Dexter and his Dad to go on a fishing trip.

Dee Dee and the Ninja Clan battle for who delivers the newspapers in the neighborhood.

Dexter attempts to make numerous accidents to get super powers.

Dexter creates a small bug that eats all the scrap metal caused by Dee Dee's destruction.

Dad wants to show Dexter the joy of sports.

Dexter is send to detention after a confusion during a test.

While the family is at the woods, Dexter goes searching for the Mighty Bigfoot, if Dee Dee doesn't find him first.

Everybody except Dexter gets sick, so he makes himself a plastic bubble to get germ protection.

Following the destruction of his lab by Dexter and Dee Dee (in the episode Dexter's Rival), Mandark turns to magic to beat Dexter at the science fair.

Dexter accidentally takes a library book without checking it out, so he and Dee Dee try to put it back without being caught.

Tired of missing his favorite TV shows because of studying, Dexter creates a special helmet that absorbs all the TV info.

Fearing that his memory might be limited, Dexter uses a device to save all his memories.

Dexter travels to the moon and finds aliens that are planning to come to Earth to take everything.

When Dexter becomes the head of a library, he inforces the rules really hard, driving everyone crazy.

Mandark disguises as Mom in order to get into Dexter's Lab.

Dexter and his dad enter a Golf tournament, with Dad eager to get his hands on the Trophy, but there is one problem: he is hopeless at Golf, so Dexter decides to help with a remote controlled Golf ball

A Monster starts roaming Dexter's lab, although Dexter doesnt know its just Dee Dee, who ate an apple in a failed lab experiment.

Dexter creates a new invention and wears it on his head. It suddenly becomes the latest fashion craze at Huber elementry.

Dee Dee learns a new game that can ""predict peoples futures"". She uses it on Dexter, and finds out that the game REALLY DOES predict peoples futures...

Rerun of the second "What a Cartoon!" pilot.

A documentary shows the secret lives of Dexter and Dee Dee, also known as Blackfoot and Slim.

Dad gets fired from his job, and has to do the same job Mom does. He realises it isnt as easy as it looks.

It's career day and Dexter is ashamed of his Dad so he creates a Dad that looks more like him.

Dexte'rs father begins to sleepwalk, and accidently stumbles into Dexter's Lab

Dexter creates a special device that lets him create his own life-like superhero comic... along with his sister villian ""Deestructa"".

Dexter will do anything to make the ice cream vendor stop to get some ice cream.

Mom thinks she should spend quality time and watch Dexter in his chess comatition. Although, she really embarasses Dexter while hes there...

After Dexter breaks his glasses, he starts a new fashion at school.

Dexter's lab is threatened with repossession unless he can repay his debt to NASA. When Dee Dee wins the same amount in a lottery, he decides to steal her money out of desperation.

Dexter must prove to Dee Dee that Santa Claus doesn't exist.

Because of his exceptional grades Dexter's school and parents have decided that he can go to college. At first Dexter is happy to be there so he can fill his mind with college knowledge, but in the end the students influence on Dexter allows him to do college pranks sending him a one way ticket back to Huber Elementary School.

This takes place in the future, where Old Man Dexter tells about his ""glory days"". And Old lady Dee Dee keeps on adding her opinions as well...

Dexter is hit by a wrench while working on a device, and suffers amnesia, Dee Dee decides to mess with his head

Dexter creates a device taht doesn't work the way he wanted.

After a failed mutation experiment, Dexter becomes Dee Dee's foot.

Mandark plans another scheme to get rid of Dexter.

Dexter prevents Dee Dee from destroying some ants. In order to teach her about ants, Dexter and Dee enter Dexter's ant farm. The ants think Dexter is a criminal and has him fight to the death with a stronger ant.

Suspicious that Dee Dee has not entered his lab even once on a particular day, Dexter shrinks himself and enters her room to spy on her. He soon becomes an unwilling character in Dee Dee's doll story, but he believes the story to be real.

Dexter is tired of being short, since his old plan of growing himself didnt work, he decides to make everyone shorter than him.

Dexter decides its better if him and Mandark work together, although in the end Dexter does all the work while Mandark does nothing

When Dee Dee accidentally chops off her pigtail, Dexter gives her some hair growth potion. Although when she uses it, her hair floods the entire house.

While fighting Comrade Red and his gang, Krunk falls in love with his equivalent in their gang, She-Thing.

When his mother falls ill, Dexter creates a robot to do her chores. Dee Dee gets hold of its remote control and wreaks havoc, forcing Dexter to create a second robot to counter Dee Dee's.

Koosy tells Dee Dee that he is the king of the land of Koos, but when Dee Dee goes there...

Dexter catches the chicken pox, and Dee Dee tells him a ridiculous tale that if he keeps scratching them, he will turn into an evil chicken. His nonstop scratching eventually does just that.

Krunk gets a nacho stuck in his tooth and Mayor Glory wants to take it out himself while Valhallens insists on taking Krunk to the dentist.

Dexter must pass a physical bar exam if he wants to pass P.E.

Dexter refuses to see that blonde's have more fun, so he dyes Dee Dee's hair to prove it.

Monkey must defend the city from a giant underground lava monster, Magmanamus, who cannot sleep because of the noise created by its residents.

Dee Dee goes over to Mandark's house to baby sit him, and Mandark likes that idea.

Dee Dee Locks and the Ness Monster—Dexter's mother forces Dexter to read to Dee Dee when she's sick, but she makes up her own story after being bored by Dexter's story (which was actually a science article). The story is completely mixed up and makes no sense. Dexter ends up catching Dee Dee's illness.

Dexter is forced to play dodgeball by his P. E. teacher. Constantly failing, Dexter builds a robotic exoskeleton to defend himself.

With only one television in their apartment, Major Glory, Krunk, and Valhallen disagree on what to watch: Major Glory's televised capture of the Disgruntled Postman, TV Puppet Pals, or the monster truck pull.

Major Glory, Krunk, and Valhallen try to rid their apartment of a bee.

Dexter's Magic Uncle Ferger 'O Reiley pays a visit.

Dexter and Dad watch a late night horror movie and spend a scary night in their house.

After a fright from Dee Dee, Dexter lays down in the beard growing machine and tries to grow a beard like his hero, Action Hank. Unfortunately, everyone thinks he's a hero.

Dee Dee has a song stuck in her head. Literally.

In need of an assistant to operate his latest invention, Dexter performs a brain transplant on Dee Dee to make her smart enough to fulfill the role. With her new brain, Dee Dee proves to be more intelligent than Dexter.

Valhallen loses his magic ax and starts turning into a nerd, forcing Major Glory and Krunk to enter his room to find it.

Rerun of "Dexter's Laboratory", the first "What a Cartoon!" pilot.

Monkey encounters an alien hunter named Huntor and must fight him to save Agent Honeydew and Commander Chief.

Surprised of the results coffee causes on Mom and Dad, Dexter and Dee Dee decide to try it themselves.

Dexter travels to the past to meet the caveman that discovered fire.

Dad decides to give the car a retouch.

Dexter creates the ultimate robot (RoboDexo 3000) to replace his previous 200 model.

Dexter creates a device to keep his clothes clean.

Dee Dee's new dance annoys Dexter to no end.

Dee Dee accidentally breaks down Dexter's lab, and she tries to not and let him know its broken.

Dee Dee starts layin' down the Judo on Dexter, then Dexter learns how to fight back.

Dexter falls in love with a new girl at his school, but decides to impress her with poetry rather than science.

Intergalactic wrestling champion Rasslor challenges Earth's superheroes, including Monkey, with the planet's fate at stake.

One of Dexter's robots becomes Dee Dee's servant when she removes a wrench that froze him up, but the robot is willing to destroy anyone who is mean to her or scolds her, including Dexter.