

Bill ends up getting foiled and arrested. It was revealed by clues left by the virus that a student at the university named Bill McLemore made the virus and materialized it into the real world with the laser to scare Eric away, out of jealousy of the latter's video game design being chosen over his baseball game for the laser project. In order to defeat the virus, the gang must find the Scooby Snacks box in each level and progress to the end.ĭuring the final level, which is in a city with a carnival, the Virus assembles the Creeper, Jaguaro, Gator Ghoul, the Tar Monster, and Old Iron Face (old enemies from Mystery Inc.'s past) to destroy the Mystery gang until the Virus is defeated and destroyed when Scooby grabs the last box of Scooby Snacks, along with the monsters he assembled. gang were transferred into the game by accident via the laser, they compete with the virus through ten levels of a Scooby-Doo video game made by Eric and conquer various monsters in different locations within the game. There, it would wreak havoc and chaos, starting with attacking Eric.

A laser for transferring material items into the virtual world and back was mysteriously and improperly used to extract the Phantom Virus into the real world of the university's lab, escaping to the greater campus.
