The Grim Adventures of Billy & Mandy

Season 1

 * 1) Meet the Reaper/Skeletons in the Water Closet/Opposite Day
 * 2) Get Out of My Head/Look Alive!/Mortal Dilemma
 * 3) Fiend is Like Friend Without the "R"/Recipe for Disaster/A Dumb Wish
 * 4) Grim or Gregory/Grim vs. Mom/Tastes Like Chicken
 * 5) Something Stupid This Way Comes/A Grim Surprise/Beasts and Barbarians
 * 6) Billy's Growth Spurt/Hoss Delgado: Spectral Exterminator/Tickle Me Mandy
 * 7) Billy and the Bully/To Eris Human/Big Trouble in Billy's Basement
 * 8) Battle of the Bands/Little Rock of Horrors/Dream a Little Dream
 * 9) Toadblatt's School of Sorcery/Educating Grim/It's Hokey Mon!
 * 10) Night of the Living Grim/Brown Evil: Part 1/Brown Evil: Part 2
 * 11) Mandy, the Merciless/Creating Chaos/The Really Odd Couple
 * 12) Who Killed Who?/Tween Wolf
 * 13) Grim in Love/Crushed/Love is Evol Spelled Backwards

Season 2

 * 1) The Crawling Niceness/Smarten Up!/The Grim Show
 * 2) Son of Nergal/Sister Grim/Go-Kart 3000!
 * 3) Five O'Clock Shadows/Terror of the Black Knight
 * 4) Grim for a Day/Chicken Ball Z/The Halls of Time
 * 5) Billy & Mandy's Jacked-Up Halloween
 * 6) Spider's Little Daddy/Tricycle of Terror
 * 7) Dumb Luck/No Body Loves Grim
 * 8) Li'l Porkchop/Skarred for Life
 * 9) House of Pain/A Grim Prophecy/Mandy Bites Dog
 * 10) Nursery Crimes/My Peeps
 * 11) Nigel Planter and the Chamber Pot of Secrets/Circus of Fear
 * 12) Bully Boogie/Here Thar Be Dwarves!
 * 13) Which Came First?/Substitute Teacher

Season 3

 * 1) Super Zero/Sickly Sweet
 * 2) Bearded Billy/The Nerve
 * 3) Test of Time/A Kick in the Asgard
 * 4) Attack of the Clowns/Complete and Utter Chaos (Billy Gets Dumber)
 * 5) Whatever Happened to Billy Whatishisname?/Just the Two of Pus
 * 6) Chocolate Sailor/The Good, the Bad and the Toothless
 * 7) Toys Will Be Toys/That's My Mummy
 * 8) The Secret Snake Club
 * 9) The Bad News Ghouls/The House of No Tomorrow
 * 10) Wild Parts/The Problem with Billy
 * 11) Happy Huggy Stuffy Bears/The Secret Decoder Ring
 * 12) Wishbones
 * 13) Dream Mutt/Scythe for Sale

Season 4

 * 1) Duck!/Aren't You Chupacabra to See Me?
 * 2) Zip Your Fly!/Puddle Jumping
 * 3) He's Not Dead, He's My Mascot/Hog Wild
 * 4) My Fair Mandy
 * 5) Jeffy's Web/Irwin Gets a Clue
 * 6) Runaway Pants/Scythe 2.0
 * 7) The Firebird Sweet/The Bubble with Billy
 * 8) Billy Idiot/Home of the Ancients
 * 9) One Crazy Summoner/Guess What's Coming to Dinner
 * 10) Mommy Fiercest/The Taking Tree
 * 11) Reap Walking/The Loser from the Earth's Core
 * 12) Ecto Cooler/The Schlubs
 * 13) Prank Call of Cthulhu

Season 5

 * 1) Billy Ocean/Hill Billy
 * 2) Keeper of the Reaper
 * 3) Modern Primitives/Giant Billy and Mandy All Out Attack
 * 4) The Wrongest Yard/Druid, Where's My Car?
 * 5) Herbicidal Maniac/Chaos Theory
 * 6) The Love That Dare not Speak Its Name/Major Cheese
 * 7) A Grim Day/Pandora's Lunch Box
 * 8) Billy and Mandy vs. the Martians
 * 9) Dumb-Dumbs & Dragons/Fear and Loathing in Endsville
 * 10) Dad Day Afternoon/Scary Poppins
 * 11) Hurter Monkey/Goodbling and the Hip-Hop-Opotamus
 * 12) Spidermandy/Be A-Fred, Be Very A-Fred
 * 13) The Crass Unicorn/Billy & Mandy Begins

Season 6

 * 1) Everything Breaks/The Show That Dare Not Speak Its Name
 * 2) The Secret Snake Club vs. P.E./King Tooten Pooten
 * 3) Billy Gets an "A" / Yeti or Not, Here I Come
 * 4) Nergal's Pizza/Hey, Water You Doing?
 * 5) Company Halt/Anger Mismanagement
 * 6) Waking Nightmare/Beware of the Undertoad
 * 7) The Greatest Love Story Ever Told Ever/Detention X
 * 8) Wrath of the Spider Queen Part 1
 * 9) Wrath of the Spider Queen Part 2
 * 10) El Dia de Los Muertos Estupidos/Heartburn
 * 11) Dracula Must Die!/Short Tall Tales
 * 12) Nigel Planter and the Order of the Peanuts/The Incredible Shrinking Mandy
 * 13) Billy and Mandy Moon the Moon