The Koos is Loose
Dexter's Laboratory - S2 - E10
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.
Dexter's Laboratory: Season 2 - 60 Episode s
2x1 - Beard To Be Feared
July 16, 1997
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.
2x2 - Quackor The Fowl
July 16, 1997
Mandark doesn't know that his pet duck is really Quackor the Fowl, Monkey's rival. Quackor overhears Mandark talking in his sleep about destroying Dexter's lab and tries to do it, unaware that Monkey is Dexter's pet.
2x3 - Ant Pants
July 16, 1997
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.
2x4 - Mom and Jerry
July 23, 1997
Dexter switches his brain with a mouse, and must avoid his mother when she decides to exterminate him. A Parody of Tom and Jerry.
2x5 - Chubby Cheese
July 23, 1997
At the Chubby Cheese pizza restaurant, Dexter wears a Chubby Cheese hat and tries to slow down the Whack The Weasel machine to win a stuffed Monkey doll before Dee Dee does.
2x6 - That Crazy Robot
July 23, 1997
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.
2x7 - D & DD
July 30, 1997
When Dexter's friends tire of the complicated traps he sets up as Dungeon Master (he has their character's killed every time), they put Dee Dee in charge for a change of pace.
2x8 - Hamhocks and Armlocks
July 30, 1997
Dexter's father gets challenged to an arm wrestling match against a local champion at a truck stop, when he causes the champion to lose for the first time, but refuses to do so even when he trashes the family car. He finally accepts the challenge when he slams the door in Mom's face. Dee Dee knows he'll get creamed, so Dexter builds him a robotic arm to help him win the match.
2x9 - Hunger Strikes
August 6, 1997
Dexter uses radiation therapy so he can like vegetables, it actually causes him to only eat vegetables, also, the therapy has consequences if Dexter goes too long without them. He turns into a Parody of The Incredible Hulk without vegetables.
2x10 - The Koos is Loose
August 6, 1997
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.
2x11 - Morning Stretch
August 6, 1997
Dexter oversleeps and still has to finish his homework along with getting ready for school and eating breakfast, so he creates a helmet that expands thirty seconds into thirty minutes, but realizes that slowing down time is more detrimental than helpful. When he gets everything done, the helmet shuts off. But Dee Dee blocks his door causing him to miss the bus. When Dexter asks Dee Dee why, she replies "Snow Day, school's canceled!". Dexter realizes he did all that rushing around for nothing!
2x12 - Dee Dee Locks and the Ness Monster
August 13, 1997
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.
2x13 - Backfire
August 13, 1997
Dexter fuses Dee Dee with the family car by accident, causing mayhem. A Parody of Herbie the Love Bug.
2x14 - Book 'Em
August 13, 1997
Dexter accidentally takes a library book without checking it out, so he and Dee Dee try to put it back without being caught.
2x15 - Sister's Got a Brand New Bag
August 20, 1997
Dee Dee's new dance annoys Dexter to no end.
2x16 - Shoo, Shoe Gnomes
August 20, 1997
Dexter calls upon the "shoe gnomes" to repair his boots, but can't rid himself of them afterwards. The only way to get rid of them, according to Dee Dee, is to kick them in the butt. Dexter gets rid of the last one with his boot, but it's damaged again.
2x17 - Lab of The Lost
August 20, 1997
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.
2x18 - Labels
August 27, 1997
Dexter and Dee Dee label everything in the house. When their parents get home, they mistake Dexter for Dee Dee (he had a Dee Dee label on his forehead), but he already blamed Dee Dee for the chaos.
2x19 - Game Show
August 27, 1997
Dexter and Dee Dee compete against each other on a game show. Where Dexter can't seem to win.
2x20 - Fantastic Boyage
August 27, 1997
Dexter tries to inject himself into Dee Dee to find a cure to the common cold, but ends up inside his dog. He believes Dee Dee has been infected with a dog virus. He is then mistaken for the first human virus to infect a dog by the vet.
2x21 - Filet of Soul
September 3, 1997
When Dee Dee refuses to flush their gold fish down the toilet, the ghost of the fish haunts them.
2x22 - Golden Diskette
September 3, 1997
Dee Dee and Dexter win a free pass to Professor Hawk's magic factory after finding the golden diskette.
2x23 - Snowdown
September 10, 1997
Dad encourages Dexter to become the king of snow, as he was in his early days, until someone beated him.
2x24 - *Figure Not Included
September 10, 1997
In an attempt to be popular with his ""friends"", Dexter makes his own Mayor Glory Action Figure.
2x25 - Mock 5
September 10, 1997
In a whole parody of ""Speed Racer"", Dexter and Mandark compete on a race.
2x26 - Ewww That's Growth
September 17, 1997
Dexter can't get into a roller coaster because he's too small so he makes himself taller.
2x27 - Nuclear Confusion
September 17, 1997
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.
2x28 - Germ Warfare
September 17, 1997
Everybody except Dexter gets sick, so he makes himself a plastic bubble to get germ protection.
2x29 - A Hard Day's Day
September 24, 1997
It's not a great day for science when Dexter has bad luck due to the position of the stars.
2x30 - Road Rash
September 24, 1997
Mom makes Dexter go outside and ride a bike, thing that turns into a Dexter-Dee Dee chase.
2x31 - Ocean Commotion
September 24, 1997
While at the beach, Dee Dee (who's wearing a mermaid swimsuit) gets captured by a maniac sailor so Dexter must rescue her.
2x32 - The Bus Boy
October 1, 1997
Dexter must go to the back of the school bus to retrieve his pencil, where another kid got lost years ago.
2x33 - The Justice Friends: Things That Go Bonk in the Night
October 1, 1997
Krunk stays awake all night watching The Puppet Pals Show Marathon, so his brain starts playing him tricks.
2x34 - Ol' McDexter
October 1, 1997
Dexter is sent to summer camp, in a place far away from civilization.
2x35 - Sassy Come Home
October 8, 1997
While the family is at the woods, Dexter goes searching for the Mighty Bigfoot, if Dee Dee doesn't find him first.
2x36 - Photo Finish
October 8, 1997
Dee Dee photographs Dexter's secret lab.
2x37 - Star Check Unconventional
October 15, 1997
Dexter and two friends go to the Star Check Convention, but certain confusion might send them to a different one.
2x38 - Dexter is Dirty
October 15, 1997
To avoid the bath, Dexter decides to laminate himself.
2x39 - Ice Cream Scream
October 15, 1997
Dexter will do anything to make the ice cream vendor stop to get some ice cream.
2x40 - Decode of Honor
October 22, 1997
Dexter and Dee Dee get their Action Hank and Pony Puff Secret Codes mixed up.
2x41 - World's Greatest Mom
October 22, 1997
Dexter newest creation gives Mom super powers.
2x42 - Ultrajerk 2000
October 22, 1997
Dexter's robot takes over his lab.
2x43 - Techno Turtle
October 29, 1997
Dexter heals a turtle by giving him loads of modern, techno stuff.
2x44 - Surprise!
October 29, 1997
Dexter makes himself invisible to make sure Mom and Dad give him what he wants for his birthday, the Ultimate Mayor Glory Action Figure.
2x45 - Got Your Goat
October 29, 1997
Dexter and Dee Dee go to South America in order to find the chupacabras, an animal that Dexter created.
2x46 - Dee Dee Be Deep
November 5, 1997
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.
2x47 - 911
November 5, 1997
When Dexter's favorite show gets interrupted by an emergency, he searches all town trying to find it and solve so regular broadcast returns.
2x48 - Down in the Dumps
November 5, 1997
Dexter and Dee Dee go to the dumps to retrieve Dee Dee's lost teddy bear.
2x49 - Unfortunate Cookie
November 12, 1997
Dexter and Dee Dee get trapped with a Finger trap.
2x50 - The Muffin King
November 12, 1997
Dexter and Dee Dee must stop Dad from eating Mom's muffins.
2x51 - Picture Day
November 19, 1997
Dexter finds out he's ugly, so he transforms his face to look better for the school photo.
2x52 - Now That's a Stretch
November 19, 1997
Dexter combines himself with bubble gum to become more stretchable.
2x53 - Dexter Detention
November 19, 1997
Dexter is send to detention after a confusion during a test.
2x54 - Don't Be a Baby
November 26, 1997
Dexter and Dee Dee want to become older, but instead they make everyone else a baby.
2x55 - Dial M For Monkey: Peltra
November 26, 1997
A new female villian named Peltra wants Monkey's Coat.
2x56 - G.I.R.L. Squad
November 26, 1997
Dee Dee, LeeLee and MeeMee become crimefighters, but of course they will not actually fight crime.
2x57 - Sports a Poppin'
December 3, 1997
Dad wants to show Dexter the joy of sports.
2x58 - Koos a la Goop a Goop
December 3, 1997
Koosy tells Dee Dee that he is the king of the land of Koos, but when Dee Dee goes there...
2x59 - Project Dee Dee
December 3, 1997
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
2x60 - Topped Off
January 14, 1998
Surprised of the results coffee causes on Mom and Dad, Dexter and Dee Dee decide to try it themselves.