Ghoul Grumps

Ghoul Grumps is a Halloween-themed spin-off of Game Grumps that began on October 25, 2013, hosted by Arin and Danny. Their monster aliases named Frankenraptor and BLEHnny.

Theme lyrics
Arin: Hey I'm ghoul

Danny: BLEEEEEEH!

Both: And we're the Ghoul Grumps!

2013
At the end of each of the intro clips, a secret message is played backward, which is different every time.
 * Goosebumps HorrorLand: Arin: "Bananas are delicious."
 * Cities on Flame: Danny: "God dammit, Ross!"
 * Slinking in the Kitchen: Arin: "I'm into some weird butt stuff."
 * EXtreme Excitement: Danny: "Get outta here!"
 * Tentacle Trouble: Arin: "Mycaruba!" / Danny: "Dun-nu-nu-nuuuu!..."
 * I Believe in You: Arin: "I wish I could go back to pooping regularly!"
 * New Kid: Danny: "Do you guys like football? I kinda like football..."
 * This is Boss: Arin: "I take my pan-seared salmon medium well!"
 * Special Delivery: Danny: "Barry says the things I'm saying here are getting too long. Do you think so? Like, comment, and subscribe!"
 * Wall of Spear : Danny: "Oh hey, how's it going?"
 * Finale (Maniac Mansion): Danny: "Inky was the best ghost in Pacman!"/Arin: "No he wasn't!"
 * Where's the Wolf: Arin: "Aaaaand weeeee're theeee gruuuuuuuuuuuuuuuuumps!"/Danny: "Nailed it!" (laughter)
 * The Addams Family: Pugsley's Scavenger Hunt: Arin: (loud mumbling sounds) "Oh, you thought I was gonna say something?
 * Finale (Castlevania: Dracula X): Danny: "This is what a fart sounds like backwards!" (farts)

2014

 * Give Me a Sign!: Arin: "One, two, three, I've gotta go pee!"
 * Air Burgers: Danny: "My favorite color is potato!"
 * Clear the Room!: Danny (singing): "Barry what's it like to eat lots of dicks? Maybe you could tell me? I'm asking for a friend."
 * Horrible Ninjas: Arin: "No mayonaise please. I'm allergic to white people!"
 * Droppin' Pearls: Danny: "Everything sounds scary when it's backwards! NNG!"
 * Shaggy Time!: Arin (rapping): "He's a real cool, real cool Radical Rex! He's a real cool Radical Rex!" Danny (singing): "Radical Rex!"
 * Can't Be Tamed: Danny: "Four score and seven years ago, in order to form a more perfect union, our forefathers touched my diiiiiick!"
 * Werewolf: The Last Warrior: Arin: "Game Grumps fun fact: I actually /have/ peed in Dan's tea." Danny: "...what?"
 * Ghost in the Sack: Arin: "My father wanted to name me Roger!"
 * Life and Gun: Danny: "Looking at horns makes me purple. Seriously!"
 * Bamboozled: Danny: "'Butts' said backwards is 'tubs!'"
 * Aliens Exist: Danny: "The best class in Dungeons and Dragons is cleric!"
 * Goofy Ghosts: Arin: " Yllem sra oui! ... It's 'You are smelly' backwards."
 * Silent Hill: Play Novel: Arin: "The color purple makes me horny. No joke! No joke. Okay."

2015

 * PARTY UP IN HERE: Danny: "Are you playing this backwards?"
 * Killing Time: Arin: "Call up your best friend. Tell them how much they mean to you. They'll really appreciate it." Danny: "Satan is Lord!"
 * A Dangerous Pickle: Arin: "Once upon a time I stuck a carrot in my butt! And it was good!"
 * Frankly Embarrassing: Danny: "The state's called Wyoming? I say 'Why-not-oming!' Nyahahahahaha *fart noise*"
 * Tough as Nails: Arin: "What do you mean you don't know how to repair electronic toothbrushes? Aaah!"
 * Everything's Broken!: Danny: "They call me, 'El Chupacabra.' That's Spanish for, 'The Chupacabra.'" Arin: *giggles*

2013

 * Goosebumps HorrorLand (One-Off)
 * Castlevania: Dracula X (7 episodes; Complete)
 * Maniac Mansion (5 episodes; Complete)
 * The Addams Family: Pugsley's Scavenger Hunt (One-Off)

2014

 * Luigi's Mansion (Episodes 1-7; Continued in Game Grumps)
 * Scooby-Doo and the Cyber Chase (3 episodes; Quit)
 * Werewolf: The Last Warrior (One-Off)
 * Alien 3 (2 episodes; Quit)
 * Silent Hill: Play Novel (One-Off)

2015

 * Deadly Creatures (3 episodes)
 * Dead Rising (3 episodes)