History Film / ScoobyDooMonstersUnleashed

* Foreshadowing: If you can understand Daphne's "incoherent babble" when she confronts Heather Jasper-Howe, you'll realize [[spoiler:she's figured out that Howe is actually the Evil Masked Figure]].

** Hilariously subverted immediately afterwards when Fred confronts [[Jacobo's]] accomplice:

* BlindWithoutEm: Velma, naturally. This time it's somewhat downplayed, as she's still able to make out [[spoiler:Patrick's StalkerShrine to Jonathan Jacobo, as well as the photograph showing [[NotQuiteDead the supposedly dead Jacobo]] outside the half-finished Coolsonian Museum]].

* BlindWithoutEm: Velma, ''again''. This time it's somewhat downplayed, as she's still able to make out [[spoiler:Patrick's StalkerShrine to Jonathan Jacobo, as well as the photograph showing [[NotQuiteDead the supposedly dead Jacobo]] outside the half-finished Coolsonian Museum]]. She also lampshades it, remarking, "I have ''got'' to consider contact lenses".

* IJustWantToBeBadass: A subplot in this film is how Scooby and Shaggy want to stop becoming TheLoad for the rest of Mystery Inc.

** MythologyGag: When Scooby [[ItMakesSenseInContext finds the toilet brush in Wickles' mansion]], he and Shaggy start singing into it. The song? "Strangers In The Night" by Frank Sinatra, the song from which Scooby's name was derived.

* OneManArmy: The Tar Monster can be this due to the nature of his powers, especially during the climax when he single-handedly incapacitates all four human members of Mystery Inc.

* BrainBleach: [[spoiler:Ned the cameraman knew who the Masked Man was. What he doesn't know, however, is that she is a ''he''.]]

* HeroWithBadPublicity: courtesy of Heather Jasper-Howe.

* LegionOfDoom: several famous monsters Mystery Inc. have tackled becoming lackies to the Masked Man.

** The Black Knight Ghost invokes this word for word when he notices that Fred and Daphne have just MacGyvered a way to defeat both him and the 10,000 Volt Ghost at the same time.

** This trope applies to pretty much all the monsters - DeeBradleyBaker as the 10,000 Volt Ghost[[note]]with Terrence Stone, better known as [[Manga/RurouniKenshin Shinomori Aoshi]][[/note]], the Zombie and the Red Eye Skeleton; WallyWingert as the Green Eye Skeleton; BobPapenbrook as the Black Knight Ghost[[note]]though only the voice, the suit was donned by KevinDurand[[/note]] and Michael Sorich[[note]]better known as [[Series/MightyMorphinPowerRangers Squatt]][[/note]] was [[ActingForTwo both]], the Tar Monster and [[CanonForeigner The Cotton Candy Blob]]. There's also an on-camera appearance by Creator/LisaAnnBeley towards the beginning as one of the "Mullet Nerdettes" at the grand opening of the museum.

** This trope applies to pretty much all the monsters - DeeBradleyBaker as the 10,000 Volt Ghost[[note]]with Terrence Stone, better known as [[Manga/RurouniKenshin Shinomori Aoshi]][[/note]], the Zombie and the Red Eye Skeleton; WallyWingert as the Green Eye Skeleton; BobPapenbrook as the Black Knight Ghost[[note]]though only the voice, the suit was donned by KevinDurand[[/note]] and Michael Sorich[[note]]better known as [[Series/MightyMorphinPowerRangers Squatt]][[/note]] was [[ActingForTwo both]], the Tar Monster and [[CanonForeigner The Cotton Candy Blob]]. There's also an on-camera appearance by LisaAnnBeley towards the beginning as one of the "Mullet Nerdettes" at the grand opening of the museum.

* HeyItsThatVoice: ScottMcNeil voices and portrays the film's BigBad while they're in disguise.

** Creator/SarahMichelleGellar's character giving her nerdy best friend a makeover to attract the guy she wants, but ends up attracting SethGreen's character instead.

Scooby Doo 2: Monsters Unleashed is the 2004 sequel to the 2002 live action movie ''Film/ScoobyDoo''.

** SarahMichelleGellar's character giving her nerdy best friend a makeover to attract the guy she wants, but ends up attracting SethGreen's character instead.

Scooby Doo 2: Monsters Unleashed is the 2004 sequel to the 2002 live action movie [[Film/ScoobyDoo Scooby Doo]].

* RecycledScript: Major similarities to the BuffyTheVampireSlayer season two episode Halloween:

* RedHerring: [[spoiler:Velma's LoveInterest, Patrick, who has a StalkerShrine to [[BigBad Jonathan Jacobo]] located not far from the Masked Man's lair, and even admits to having admired the latter's work]].

* IJustWantToBeBadass: a subplot in this film is how Scooby and Shaggy want to stop becoming TheLoad for the rest of Mystery Inc.