Goosebumps - Season 2 - Eps 3: Attack of The Mutant (2)
Skipper Matthews has an awesome comic book collection. His favorite one is called The Masked Mutant. It's about an evil supervillain who's out to rule the universe! Skipper can't get enough of The Mutant. Until one day he gets lost in a strange part of town. And finds a building that looks exactly like The Mutant's secret headquarters. A building that appears and disappers. Has Skipper read one too many comic books? Or does The Masked Mutant really live in Riverview Falls?
About Goosebumps

Title: Goosebumps
First Air Date: 1995-10-27
Last Air Date: 1998-11-16
Status: Ended
Rating: 7.887/10 (from 589 votes)
Language: EN
Seasons: 5
Total Episodes: 71
Network: FOX YTV Fox Kids
Genres: Sci-Fi & Fantasy, Mystery, Kids, Comedy
Production Companies: Protocol Entertainment, Scholastic Productions
Synopsis
Anything can turn spooky in this horror anthology series based on the best-selling books by master of kid horror, R.L. Stine. In every episode, see what happens when regular kids find themselves in scary situations, and how they work to confront and overcome their fears.