Scooby Doo! Who's Watching Who? is a Nintendo DS action-adventure game featuring Mystery, Inc. in a ghost-hunting reality TV showdown. The story pits the gang against GSI, the Ghost Scene Investigators, in a contest to uncover and unmask the most ghosts.

• Cleaned, tested, and guaranteed to play. Authentic cartridge.
• Action-adventure gameplay built around spooky investigations, enemy encounters, and escape sequences.
• Scooby can use power moves to defeat enemies during haunted-stage challenges.
• The Mystery Machine appears in driving segments where players outrun pursuing enemies.
• The game features the core Mystery, Inc. cast alongside a rival ghost-investigation team.

The reality-show setup gives this Scooby-Doo adventure a different framing from the usual haunted-house mystery, turning the case into a competition between two investigating crews.