Bill McLemore is a college student and was Eric Staufer's college partner and best friend who wanted to sabotage his chances of winning the big cash prize at the science fair because of jealousy for the fact that Eric's science project was chose over his, even though he was at the college for two years longer, from Scooby-Doo and the Cyber Chase.
Plot[]
Bill and Eric were both majoring in video game designing at the university they were attending. One night, while Eric and Bill were working at the college with their teacher, Professor Kaufman, a virus came out of nowhere and started scaring them, using the technology to injure Eric. Professor Kaufman managed to scare it away with a very strong super-magnet.
The next day the Mystery Gang arrived because Eric, who's an old high school friend of theirs, based his game on them and the mysteries they've solved. While there, they were informed about the Phantom Virus. Bill also showed Fred Jones his video game about baseball because he's an avid baseball fan. During the search, however, someone beamed the gang into the game where they had to play through all the levels and finally defeated the monsters and the Phantom Virus, and managed to return to the college, to reveal the culprit who created the virus, and the clue he left behind, such as the baseball segments. This makes Eric realize that the culprit who has the likeness of baseball, is none other than his best friend, Bill. When revealed, he tried to escape Wembley and the Mystery Gang only for Scooby to trip him over with his tail capturing him with his baseball video game giving him a game over.
Bill confessed to doing it out of jealousy because Professor Kaufman had chosen Eric's project over his own to compete in the upcoming science fair. Bill felt that this was unfair, especially because he had been a student at the college two years longer than Eric had, and felt that this made him more deserving to compete in the science fair than Eric. Bill created the virus, hoping to scare Eric away and take the prize for himself, and he beamed the gang into the game, hoping they wouldn't live to find out who the culprit was. In the end, Bill was arrested by Officer Wembley for his crimes.