"Rikes!"
Scooby-Doo, Who's Watching Who? is a 2006 video game based on Scooby-Doo that was released on the PlayStation Portable and the Nintendo DS. In this game, the Mystery, Inc. gang find themselves on a reality show known as Ghost Scene Investigation, where they are tasked with solving several mysteries and eventually unmasking their rivals the GSI team's archenemy the Ghost Hunter Haunter.
This game provides examples of the following tropes:
- Alliterative Name: Several characters have names that are alliterations.
- Professor Lorelei Leigh.
- Ghost Scene Investigation producer Mace Middlemost.
- Samson S. Samson.
- Sylvester Sweetsugar (whose real name is Edgar Norbert Diffendork).
- Big Bad: The Ghost Hunter Haunter, who has apparently menaced the Ghost Scene Investigation team in the past and is now setting his sights on the Scooby Gang. He turns out to be the show's producer Mace Middlemost.
- Bitch in Sheep's Clothing: Sylvester Sweetsugar puts on a friendly facade for PR purposes, but in reality is a cantankerous asshole.
- Corrupt Corporate Executive: Sylvester Sweetsugar, real name Edgar Norbert Diffendork, is the current head of the Sugarland candy corporation and only cares about using the company to get money. He's said to treat his employees poorly and cut costs by making the candy using cheaper ingredients.
- Evil All Along: Mace Middlemost initially appears to be nothing more than the producer of Ghost Scene Investigation, who does nothing worse than encourage the Ghost Scene Investigation team to continue being hostile to Mystery, Inc. for the sake of ratings. He's eventually revealed to be the true identity of the Ghost Hunter Haunter, having used his costumed persona to ensure that his show would keep getting good ratings.
- Final Boss: The final boss is the Ghost Hunter Haunter, insofar that the minigame of luring the costumed criminal into three traps at the end of every level can be considered a boss fight.
- Gender Flip: Two of the suspects in the game are female versions of male villains from the original cartoon.
- Henrietta Bascombe, one of the three suspects for the true identity of the Space Kook, is based on Henry Bascombe, the monster's true identity in the original series episode "Spooky Space Kook".
- One of the suspects for the true identity of the Ghost of Redbeard in the Oceanland level is Professor Alicia Wayne. She shares her surname, occupation, and background of working at Oceanland with Professor Wayne, who disguised himself as a caveman in the episode "Scooby's Night with a Frozen Fright".
- Genius Bruiser: Dr. Scott O'Mulligan, the leader of the Ghost Scene Investigation team, is said in the game's instruction book to have brawn and brains.
- Not His Sled: Every mystery will have the gang having to gather clues to identify which of the three suspects is disguising themselves as a ghost. While the Ghost of Elias Kingston, the Space Kook, and the Ghost of Redbeard have their respective true identities from Scooby-Doo, Where Are You! (Stuart Weatherby, a Gender Flipped Henry Bascombe named Henrietta Bascombe, and C.L. Magnus) as suspects, the actual identity of the disguised criminal in the first four cases is randomized, so fans expecting the ghost's true identity from the original show to be the guilty party might be caught off-guard by having one of the other culprits determined guilty by the assembled clues and unmasked after the disguised criminal is captured.
- Repetitive Name: One of the suspects for being the true identity of the Clown Ghost in the Sugarland level is named Samson S. Samson.
- The Rival: The Ghost Scene Investigation team get off on the wrong foot with Mystery, Inc., resenting them for beating them to unmasking all of the criminals disguised as ghosts and unintentionally overshadowing their popularity.
- "Scooby-Doo" Hoax: Well, of course, but the PSP version ends with Scooby Doo revealing that Mace Middlemost is in fact someone named Old Man Wiggins in disguise.
- The Smurfette Principle: Professor Lorelei Leigh is the only female member of the Ghost Scene Investigation team.
- Team Pet: The Ghost Scene Investigation team have a robot cat named Catscan serve as their equivalent to Scooby-Doo.
- Token Minority: Monty Caswell is the only black member of the Ghost Scene Investigation team.
- Two Guys and a Girl: The Ghost Scene Investigation team consists of two male members (Dr. Scott O'Mulligan and Monty Caswell) and one female member (Professor Lorelei Leigh).
