Scooby-Doo! and the Witch's Ghost (1999)

A cosmic case of flying saucers, intergalactic intrigue and out-of-this-world romance launches Scooby-Doo! and the Mystery Inc., Gang into their most unearthly adventure ever.

Scooby, Shaggy and Scrappy are on their way to a Miss Grimwood's Finishing School for Girls, where they've been hired as gym teachers. Once there, however, they find that not only is it actually an all-girl school of famous monsters' daughters but there's a villainess out to enslave the girls.

Scooby-Doo and the rest of the ghost-busting gang visit a quiet farm town where everyone is preparing for the annual Halloween harvest celebration.

After a military plane crashes outside of a small American town, its cargo — a genetically engineered, sixty-foot-long python — begins stalking and killing the locals.

As Alvin struggles with nightmares involving werewolves, the school play of Jekyll & Hyde is in jeopardy when the lead, Alvin, is suspended. In an attempt to boost his confidence, the principal suggests Theodore, who's suddenly going through some canine changes.

Scooby and the gang have their first musical mystery in “Scooby Doo: Music of the Vampire.” It begins when they take a sing-a-long road trip into bayou country to attend the “Vampire-Palooza Festival” – an outdoor fair dedicated to all things Draculian. At first it looks as if they’re in for some fun and lots of Southern snacks, but events soon turn scary when a real live vampire comes to life, bursts from his coffin and threatens all the townsfolk. On top of that, this baritone blood sucker seems intent on taking Daphne as his vampire bride! Could the vampire be a descendant of a famous vampire hunter who is trying to sell his book? Or perhaps he’s the local politician, who has been trying to make his name in the press by attacking the vampires as downright unwholesome. The answers are to be found in a final song-filled showdown in the swamp in which our heroes unmask one of their most macabre monsters yet.

The gang's vacation to Paris takes a wrong turn when Scooby and Shaggy miss their flight and end up on a skydiving expedition in the Himalayas. To make matters worse, upon arrival they must outrun the Abominable Snowmonster.

When Scooby and the gang get trapped in a video game created for the gang, they must fight against the 'Phantom Virus.' To escape the game they must go level by level and defeat the game once and for all.

When Casper's been being friendly lately even when playing with a boy named Jimmy, Kibosh: The King of the Underworld has Casper enrolled into a Scare School headed by the two-headed headmaster Alder and Dash. He befriends Ra, a mummy with unraveling issues and Mantha, a zombie girl who keeps falling apart. When Casper discovers the two-headed headmaster's plot to use a petrification potion to turn Kibosh into stone and take over the Underworld and Deedstown, he and his new friends must stop him.

Based on the legend of the Pied Piper, it stars Snoopy as the title character, who tries to rid the Peanuts' gang's hometown of mice by playing his concertina, in return for a year's supply of dog food.