"This is a warning to all living mortals, that whosoever opens this Chest of Demons will release 13 of the most powerful ghosts upon the face of the Earth!"
The 1985 incarnation of the Scooby-Doo franchise and final incarnation of the original Scooby-Doo franchise. The first also to introduce a story arc, though it was never finished due to its cancellation.It begins when Scooby, Shaggy, Daphne and Scrappy end up in Tibet by plane crash, and Scooby and Shaggy are tricked into opening the Chest of Demons, a chest containing 13 powerful, terrifying ghosts each bent on world domination. Fated to return the malevolent spirits to the chest, the team is guided by mysterious mystic Vincent Van Ghoul, played by Vincent Price, who exasperatingly helps our heroes catch them all before it's too late.This show uses the globetrotting Scooby-Shaggy-Daphne-Scrappy format of the late 1970s/early 1980s shows, though it is the last show to do so, also adding a new member of the gang in the form of Flim-Flam, a child con artist who runs into the gang and joins up with them.
Bad Future: The episode "It's a Wonderful Scoob." Without Scooby around, the world falls to the ghosts, Daphne is a broken slave to the Time-Slime ghost, Scrappy and Flim-Flam have become his loyal servants, and Shaggy is a lone rebel that has gone crazy, adamantly believing that Scooby will return and save them.
Big Bad Wannabe: Bogel and Weerd so desperately want to be one of the 13 ghosts.
Chekhov's Gun: Flim-Flam was selling a concoction known as "Lots of Luck Joy Juice" when we first see him. One of the ingredients was Wolfsbane, and a splash of it was enough to cure the werewolf villagers that put the gang into a corner.
In another episode, a vendor hands Daphne a magic amulet written in gibberish. It turns out that when Daphne gets sucked into the mirror world, she learns that it's a magic spell. Moreover, the vendor was actually Vincent Van Ghoul in disguise!
Dark Is Not Evil: The shadow that the gang chase after in "Me and My Shadow Demon" is actually harmless.
Dangerously Genre Savvy: Several of the 13 Ghosts went after the Scooby gang directly with their worst tricks rather than wait around to be captured. It could count as Genre Blind, too, considering whose show this actually is.
Heroic BSOD: In "It's a Wonderful Scoob," after a mishap with Time Slime's scepter shows him all the horrors he's faced in his life, Scooby becomes so traumatized that he goes into a 10-Minute Retirement. Vincent shows him a Bad Future to help snap him out of it, though.
Nice Job Breaking It, Hero: The series starts with Scooby and Shaggy tricked into opening the Chest of Demons. As Vincent Van Ghoul states in the opening as to why they have to do this, "Because you let them out!!!"
No Ending: There are 13 ghosts and 13 episodes. But the first episode was just Scooby and Shaggy accidentally letting them loose, and another episode didn't end with a captured ghost. So the show ended with just two ghosts left, and no conclusion.
Our Ghosts Are Different: Down to the last ghost. While they are all referred to as ghosts, the series goes back and forth on whether they're actual demons or something else entirely. A couple of them even seem more like rival magic users to Van Ghoul rather than actual spirits.
Our Werewolves Are Different: The first episode has a town of werewolves who hide their true selves from outsiders, only to attack and transform them at night, acting more like a secret cult than the general idea of a werewolf.
The Only One: Vincent Van Ghoul makes it clear from the beginning that Scooby and Shaggy are the only ones who can recapture the 13 Ghosts because they were the ones who set them free in the first place.