Originally published: New York: Scholastic, 2000.

When a robot attacks the crowd at a robot convention, Scooby and the gang take the case to save the reputation of one of Velma's old teachers.

Scooby and the gang were at the Coolsville Robot Expo. Professor Tinkerwell, Velma's old teacher invites them to be his guests. After one of the Monsterbots attacks the crowd, Mystery Inc. sets a trap to find out who is responsible for the attacks on both the crowd and themselves.

Something creepy is going on at Funland, and Scooby-Doo is on the case. The gang uses their knowledge of forces and motion to investigate why the rides are running by themselves, and why a wacky robot is out to get them! Scooby and friends use science to solve the mystery and save the day!

Scooby and the gang come up with a plan to save Cape Muccalucca from a green sea monster.

A Scooby-riffic mystery series! The Gang get ready for some serious shopping when they head to the Happy Valley Mega Mall. Daphne, Fred, Velma, and even Scooby and Shaggy want to check out the new store, Dr. Yuckenstein's Make-A-Monster Laboratory where they can make their own customized monster dolls! But - ruh-roh - a mega-sized monster has come to life and is scaring away all the customers! It's a monster of a mystery that only Scooby-Doo and Mystery, Inc. can solve!