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Dexter's Laboratory
Season 2 · Episode 10
The Koos is Loose
7.07mAugust 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.
Episodes
- Episode 1Beard to be Feared
- Episode 2Quackor the Fowl
- Episode 3Ant Pants
- Episode 4Mom and Jerry
- Episode 5Chubby Cheese
- Episode 6That Crazy Robot
- Episode 7D & DD
- Episode 8Hamhocks and Armlocks
- Episode 9Hunger Strikes
- Episode 10The Koos is Loose
- Episode 11Morning Stretch
- Episode 12Dee Dee Locks and the Ness Monster
- Episode 13Backfire
- Episode 14Book 'Em
- Episode 15Sister's Got a Brand New Bag
- Episode 16Shoo, Shoe Gnomes
- Episode 17Lab of The Lost
- Episode 18Labels
- Episode 19Game Show
- Episode 20Fantastic Boyage
- Episode 21Filet of Soul
- Episode 22Golden Diskette
- Episode 23Snowdown
- Episode 24*Figure Not Included
- Episode 25Mock 5
- Episode 26Ewww That's Growth
- Episode 27Nuclear Confusion
- Episode 28Germ Warfare
- Episode 29A Hard Day's Day
- Episode 30Road Rash
- Episode 31Ocean Commotion
- Episode 32The Bus Boy
- Episode 33The Justice Friends: Things that go Bonk in the Night
- Episode 34Ol' McDexter
- Episode 35Sassy Come Home
- Episode 36Photo Finish
- Episode 37Star Check Unconventional
- Episode 38Dexter is Dirty
- Episode 39Ice Cream Scream
- Episode 40Decode of Honor
- Episode 41World's Greatest Mom
- Episode 42Ultrajerk 2000
- Episode 43Techno Turtle
- Episode 44Surprise!
- Episode 45Got Your Goat
- Episode 46Dee Dee Be Deep
- Episode 47911
- Episode 48Down in the Dumps
- Episode 49Unfortunate Cookie
- Episode 50The Muffin King
- Episode 51Picture Day
- Episode 52Now That's a Stretch
- Episode 53Dexter Detention
- Episode 54Don't Be a Baby
- Episode 55Dial M For Monkey: Peltra
- Episode 56G.I.R.L. Squad
- Episode 57Sports a Poppin'
- Episode 58Koos a la Goop a Goop
- Episode 59Project Dee Dee
- Episode 60Topped Off
- Episode 61Dee Dee's Tail
- Episode 62No Power Trip
- Episode 63Sister Mom
- Episode 64The Laughing
- Episode 65Dexter's Lab: A Story
- Episode 66Coupon for Craziness
- Episode 67Better Off Wet
- Episode 68Critical Gas
- Episode 69Let's Save the World You Jerk!
- Episode 70Average Joe
- Episode 71Rushmore Rumble
- Episode 72A Boy and His Bug
- Episode 73You Vegetabelieve It!
- Episode 74Aye Aye Eyes
- Episode 75Dee Dee and the Man
- Episode 76Old Flame
- Episode 77Don't Be a Hero
- Episode 78My Favorite Martian
- Episode 79Paper Route Bout
- Episode 80The Old Switcharooms
- Episode 81Trick or Treehouse
- Episode 82Quiet Riot
- Episode 83Accent You Hate
- Episode 84Catch of the Day
- Episode 85Dad is Disturbed
- Episode 86Framed
- Episode 87That's Using Your Head
- Episode 88DiM
- Episode 89Just an Old Fashioned Lab Song...
- Episode 90Repairanoid
- Episode 91Sdrawkcab
- Episode 92The Continuum of Cartoon Fools
- Episode 93Sun, Surf, and Science
- Episode 94Big Bots
- Episode 95Gooey Aliens that Control Your Mind
- Episode 96Misplaced in Space
- Episode 97Dee Dee's Rival
- Episode 98Pslyghtly Psycho
- Episode 99Game for a Game
- Episode 100Blackfoot and Slim
- Episode 101Trapped with a Vengeance
- Episode 102The Parrot Trap
- Episode 103Dexter and Computress Get Mandark!
- Episode 104The Justice Friends: Pain in the Mouth
- Episode 105Dexter Vs. Santa's Claws
- Episode 106Dyno-Might
- Episode 107LABretto
- Episode 108Last But Not Beast