Line #6 YMMV/HappyHalloweenScoobyDoo


1	* CargoShip: Once again, Fred and the Mystery Machine. He even refers to it as "my love".
2	* FridgeBrilliance: Another reason the gang failed to recognize the Sheriff as past enemy Cutler Toe -- aside from lack of a beard, hat covering the baldness, and altering voice and demeanor -- the picture of the unmasking from his monster disguise shows that the gang found Toe's Trash Monster shtick so nauseating that none of them could stand to even look at him directly.
3	* InferredHolocaust: The town of Crystal Cove (or at least the town square judging by later dialogue) is presumably destroyed by collapsing into a cataclysm, possibly killing god knows how many people assuming they didn't evacuate in time.
4	* JustHereForGodzilla: Even if you don't regularly watch the Scooby-Doo movies, you may decide to give this movie a go if you're a Batman fan to see the appearance of ComicBook/TheScarecrow. Or if you're a fan of Bill Nye and/or Elvira, either of them could be strong selling points for the movie as well.
5	* LesYay: Daphne is '' '''really''' '' into Elvira.
6	* SurprisinglyImprovedSequel: In contrast to the controversial ''WesternAnimation/ScoobyDooAndTheCurseOfThe13thGhost'' and the despised ''WesternAnimation/ScoobyDooReturnToZombieIsland'', this movie earned very positive reviews, thanks to Maxwell Atoms's strong direction and a more cohesive mystery and comedy.
7	* TheyWastedAPerfectlyGoodCharacter: Even ignoring those who don't have that much of a problem with Scarecrow being the main villain for a second, many fans were still disappointed to find out that despite being heavily advertised as such that his total screen time only amounts to five minutes, with his only major moments being at the beginning and then towards the end of the second act, feeling like a bit of a waste especially since Creator/DwightSchultz is clearly giving it his all as well as the interesting WorthyOpponent dynamic he has with Velma. The most common speculation being (like most behind-the-scenes aspects of the film) ExecutiveMeddling, specifically from the DC Comics side of things.
8	* UnexpectedCharacter:
9	** [[Franchise/{{Batman}} Jonathan Crane aka]] ''ComicBook/TheScarecrow'' is featured in what at first is an antagonist role but turns into a support role.
10	** Elvira is also pretty surprising due to not being traditionally associated with family entertainment (well, outside of Knotts' Berry Farm anyway) and being pretty obscure to most people born after TheEighties. However, this marked her second inclusion in this Scooby series.
11	** To a lesser extent, Bill Nye also put in an appearance on ''WesternAnimation/ScoobyDooAndGuessWho'', but him also appearing in a DirectToVideo movie was surprising.
12	** The return of the Sheriff is a near aversion, only because after he returned in the previous movie some were expecting he wasn't done.
13	** Due to Red Herring not having appeared in any ''Scooby Doo'' media since ''WesternAnimation/APupNamedScoobyDoo'', seeing him briefly return in a cameo appearance with his own Halloween-themed business can come as a surprise.

Context YMMV / HappyHalloweenScoobyDoo