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Scooby Doo! Mystery Mayhem is a video game based on the Hanna-Barbera/Warner Bros. cartoon character Scooby Doo. It was created by Artificial Mind and Movement, THQ and Warner Bros.. This is the second Scooby-Doo video game to feature a laugh track.
Scooby Doo and the gang are back on the case, trying to solve another supernatural mystery, but this not your average everyday mystery with some nutcase dressed in a costume. A mysterious villain has used the Tome of Doom, a magical book, and released a terrifying army of ghosts, monsters and zombies. It just so happens that Shaggy and Scooby come across the Tome of Doom and start using it to trap monsters back inside its pages. Now Fred, Velma, Daphne, Shaggy and Scooby are on a wild goose chase, trying to solve the mystery and sealing the monsters back in the book.
The gang is called by Velma's former school librarian, Alan Dinsdale to solve a mystery at Hambridge Library. He thinks that the villain is not a man-in-a-costume, but a supernatural being because of all of its supernatural happenings. He introduces his assistant, Walter Peabody to the gang. The gang split up and look for clues: Velma looks in the lobby, Scooby and Shaggy look in the basement and Daphne and Fred look in the Archives. A while later, after searching, Shaggy and Scooby find a thick book called "The Tome Of Doom" on a secret floor. They bring it to Velma who analyzes it. Along the search, Scooby finds three clues: a mysterious telegram from "S.D", and a letter. The three find Fred and Daphne, a scared Daphne tells them that she followed several footprints which lead her to a ghost, which lead her to a room, then she got locked in the room by a hooded figure. They try to find Mr Dinsdale who mysteriously disappeared. They also encounter the hooded figure who they find out is Walter Peabody. Mr Dinsdale comes and is shocked to find his own assistant to be a menace. They all question him. But there are still mysteries still to be solved. Who is "S.D"? Why did Peabody rip out papers from the "Tome Of Doom"? Mr Dinsdale hires Velma to investigate the mystery further at the Miltons Movie Studio.
Velma explains to Shaggy to the gang that the book has potential energy and needs more energy if decreasing with wisps. At the movie studio, Robert Zabrinski is trying to buy the studio from the Milton Brothers. But they object. Zabrinski stills has hope and gives them a phone card. Later, the gang split up and looks for clues. Hours later, at midday, Shaggy finds a phone card, but this one smells like cologne, a popular perfume. They also find that one of the brothers have disappeared. The other brother encounters the horrific "Red Knight". They blind him by studio lights, they take off the mask to see it is Robert Zabrinski. It is explained that Zabrinski was trying to buy the studio. He used cologne to attract people for popularity. The missing Milton brother was trapped by Zabrinski, who dressed as the Red Knight, who saw him and wrapped him up in bandages and locked him a cage. One of the clues: which was a brochure from Western Theme Park is revealed that Zabrinski was trying to buy the park as well. The gang drive to Western Theme Park.
They find Johnny Channayakpatra and Mindi Stiles. They again for on the same day split up for other clues. Three hours later, three discoveries are found: a picture of Robert Zabrinski and Mindi Stiles dancing in the Salon, a one-way ticket for Mindi Stiles and a mysterious "pink princess" is wondering on the streets of the park. She gets annoyed of Shaggy and Scooby following her so she uses her power to kill them, but accidentally, she transforms into a tornado. She sucks up Daphne. With the power of the "Tome Of Doom", the book defeats the "pink princess" who is Mindi Stiles. Obviously, someone was summoned by Robert Zabrinski to sabotage the park and scare the park workers and visitors there, so Zabrinski could buy it. Meanwhile, at a secret base, called Sherman-Tech Headquarters, a woman gets a call from Walter Peabody that he hasn't said anything to the police, another person, hidden in the shadows says that Zabrinski was a weak link. So, since three have already been arrested, he "moves on with the plan".
In the afternoon-evening, the gang go to an abandoned house in the middle of nowhere. The house was haunted by the living dead and scared all the members of the house. The house is also surrounded by bayous, swamp-like lakes which crocodiles live in. The gang split up. Scooby finds a letter with the sender's name smudged because of the mud and water. Daphne finds a yellow key to open another yard which is zombie-filled. Mysteriously, Fred has found a camp of army men who can fend off the zombies with laser guns. Scooby and Shaggy fight the zombies and their originating starting point, vortexes with the power of "The Tome Of Doom". Later, the master of the camp is run by a Jeremy Rhodes who works at Greenwood Development, a society of people who study the paranormal. One of the clues is a book which is about geographical studies about Colorado. The gang drive to Colorado, which has changed to a land of newly installed satellites and transmitters. Fred have booked a tour at the Sherman-Tech Headquarters, which all the clues eventually ended up to. There is Travis Sherman and his chief executive officier, Selena Drake. While Fred, Velma and Daphne take the tour, Shaggy and Scooby split up. Later, they find the Spooker 3000, a laser gun that can fend off any enemy. They also encounter weird men in lab coats and hoods. Also, clues: a map of California, a computer disk. They find Daphne, Fred and Velma who have been possessed by Selena Drake and Travis Sherman.
The truth is finally revealed: "S.D" is Selena Drake. Travis Sherman was the person who hired Peabody, Zabrinski and Stiles, and created the voids at the bayous. Selena and Travis send the possessed three to try to kill Scooby and Shaggy, they disable the mind-possessing machine in a couple short hours. Fred, Daphne and Velma have been restored to their true selves again. Unexpectedly, Mr Dinsdale comes in, followed by the lab-covered men. It is revealed that they were Mr Dinsdale's agents, revealing that he is one too. Velma is surprised to find her own librarian a secret agent. They arrest Sherman, who confesses it's over with the evil plans to Selena. This is implying that the transmitters in the land were going to "transmit" the possessing waves around the world, possessing every type of intelligience. Selena insults Sherman for his actions, and releases from some ripped pages of "The Tome of Doom", fire ghosts. But her plan, fails after the gang seal the ghosts in the tome. Now, completely insane, Selena releases the strongest spirit of the tome, the Fire King. After discovering that the Fire King is not as invulnerable as they thought, they manage to seal it. Selena, fearing her arrest, runs through to the monrail. The gang ride it as well and manage to catch her. The police arrive and take Selena to the mental asylum. Scooby and Shaggy confesses their need for food, because of a day of hard work, and once again and as always, Mystery Inc has stopped another villain's plans.
The levels are very basic: there are three main objectives:
- Seal all the monsters in the level.
- Find the five clues.
- Complete the level and its missions.
There are also collectible sandwich ingredients in each level that unlock mini-games.
Levels and Biological Villains
There are five levels: Haunting Of Hambridge, Mayhem At The Movies, Wild, Wild West, Bad Juju In The Bayou and the hardest level, Hi-Tech Terror. The villains are (from first to fifth), Walter Peabody, Robert Zabrinski, Mindi Stiles, the fourth level does not a have a biological villain, and the fifth and final villain is Selena Drake who Scooby and Shaggy chases around the hi-tech mansion-like laboratory.
There are several monsters that need to be captured by the Tome of Doom in this game. They include the (standard) ghosts (which look similar to that of the Scooby-Doo episode, 'A Night of Fright is No Delight'), Mummies, Zombies, Poltergeists (invisible ghosts),and Dust Devils (tornado-like monsters).
When something scares Scooby and Shaggy, their Cool Meter is drained. If the Cool Meter is totally drained, the next time an enemy catches Scooby or Shaggy, they will run away and have to start at their last save point. To replenish the Cool Meter, Scooby and Shaggy find Scooby Snacks.
There is a small circle representing radar. The yellow triangle in the center represents Scooby and Shaggy. Red dots on the Radar are enemies.