The game consists of four episodes, each of them having younger versions of Mystery, Inc. collecting clues to determine the true identity of the monster disguise after facing said monster in a boss fight.
A sequel was released in 2010 titled Scooby-Doo! and the Spooky Swamp.
This game provides examples of:
- Abandoned Mine: Beneath Keystone Castle in Episode 4.
- Adaptational Badass: Mystery Inc. went from non-combatants in the original series to combatants in this video game, especially Daphne, who goes from Damsel in Distress to a Kick Chick.
- Amusement Park of Doom: The main setting of Episode 2.
- Big Fancy Castle: Keystone Castle in Episode 4.
- Circus of Fear: The main setting of Episode 2.
- Construction Zone Calamity: Featured briefly in Episode 2.
- Corrupted Character Copy: Tim Toiler from Episode 2 can best be described as an evil Willy Wonka who makes toys instead of candy, particularly resembling how Willy Wonka is portrayed in Nestle's Wonka candy commercials.
- *Cough* Snark *Cough*: In Episode 4, Costington has a habit of coughing before making remarks at the expense of Baron Von Richenstoof, Scooby, and Shaggy.
- Creepy Circus Music: In Episode 2.
- Creepy Doll: The Rag Dolls in Episode 2.
- Dagwood Sandwich: The "hot dogs" which Shaggy and Scooby make during Episode 2. They hardly even resemble hot dogs due to the amount of toppings (and the fact that they are topped with bread rather than buns).
- Dem Bones: Animated skeletons appear as enemies in Episode 1.
- Down the Drain: Some parts of Episode 2 are set in the sewers beneath the circus.
- Episodic Game: The game is set in 4 episodes.
- Final Boss: The Witch Queen is the final boss fought in the game due to being the boss of the fourth and final episode.
- Fish People: In Episode 3.
- Flying Broomstick: Used by the witches in Episode 1.
- Four-Legged Insect: For some reason, spiders only have 6 legs.
- Gadgeteer Genius: Episode 2 has the gang encounter Numbers, a boy who invents gadgets to try and track down the one behind the toy army at the carnival.
- Giant Spider: Encountered in Episode 4.
- The Grim Reaper: The Gliding Ghouls in Episode 2 are reminiscent of the Grim Reaper.
- Haunted Castle: Keystone Castle in Episode 4.
- Humongous Mecha: The bosses of Episode 2 and 3 - a giant Toy Robot and a giant mechanical lobster, respectively.
- Invisibility: The Black Musketeers in Episode 1.
- Kick Chick: Daphne fights by kicking.
- Killer Teddy Bear: Enemies in Episode 2.
- Laugh Track: The fourth Scooby-Doo game to feature the use of a laugh track.
- Lethal Lava Land: Deep underneath Keystone Castle in Episode 4.
- Lighthouse Point: In Episode 3.
- Living Toys: Seen in Episode 2, with the Rag Dolls and Toy Soldiers.
- Losing Your Head: The Shakespearean Ghosts in Episode 1 carry their heads in their hands.
- The Lost Woods: In Episode 4.
- Monster Clown: The Killer Klowns in Episode 2.
- The Musketeer: The Black Musketeers in Episode 1.
- Mythology Gag: Daphne's karate outfit is highly reminiscent of the one she wore in Scooby-Doo! and the Samurai Sword, which also came out in 2009.
- Nightmarish Factory: The Toy Factory in Episode 2.
- Our Gargoyles Rock: Some of the gargoyles in Episode 4 come to life and attack the player.
- Port Town: Rocky Bay in Episode 3.
- Precocious Crush: Teenage Daphne has a crush on adult Seth Angler in Episode 3.
- Real After All: The Witch Queen is implied to actually be a genuine supernatural threat and not just a criminal in a costume, as no explanation is given for her powers and her suspected true identity Lady Azarni is hinted to be long deceased.
- School Setting Simulation: St. Louis High School in Episode 1.
- Ship Level: The Ghost Ship in Episode 3.
- Shout-Out: Several.
- The Phantom of the High School Musical is an obvious play on The Phantom of the Opera and High School Musical.
- Once Tim Toiler is revealed to be The Toyman, he gives his full name as "Tim 'The Toyman' Toiler".
- The reason why they travel to the carnival at all is to practice for the eating contest by getting "Dagwood Dogs"note .
- Fred's knight costume has a helmet just like the iconic one worn by Ned Kelly.
- Sinister Scythe: Wielded by the Gliding Ghouls in Episode 2.
- Throw the Book at Them: Velma's fighting style, literally.
- Toy Time: The Toy Factory in Episode 2.
- Villain Song: The first phase of the boss fight against the Phantom in Episode 1 has the Phantom sing to Mystery, Inc. about how they'll get in trouble for trying to thwart him.
- Wham Line: At the end of Case 4 (and the game itself) the gang explains to Baron Von Richenstoof about how it was his sister Lady Azarni who was behind the plot to keep all the gold stored in the mine underneath the castle to herself and wonder at how she managed to pull tricks of casting lightning and teleporting, followed by the Baron dropping this line, painting things in a very different light:Baron Von Richenstoof: I beg your pardon, but what sister? I don't have a sister. [...] Nobody lives in the castle but me and the servants. And I am an only child.
- Wicked Witch: Enemies in Episode 1.
