* AccidentalInnuendo, One line from the Hex Girls first song can bring the phrase NocturnalEmission to mind.
--> '''Thorn:''' You'll wake up in the dead of night, Missing Me When I'm out of sight.
* {{Anvilicious}}: Being an "eco-goth" band, the song "Earth, Wind, Fire, and Air" is thick on its message on the importance of being environmentally friendly. It's still very catchy and fun, so no one really cares.
* SugarWiki/AwesomeMusic:
** While ''Zombie Island'' delved into the punk genre, ''Witch's Ghost'' delved into gothic-themed Grunge with [[https://www.youtube.com/watch?v=1P_BlUY2eF4 the Hex Girls]]. They provide some of the best music of the movie.
** The credits theme "The Witch's Ghost" fully embraces the dark tone of the climax, even if the artists credited as the Hex Girls aren't their actual actors. It has an intimidating grunge beat, really plays into the creepiness of the supernatural the film delves into, giving the film's villain the gravitas they deserve, and ends the film on an eerie note.
* CultClassic: It's perhaps not quite as fondly regarded as ''WesternAnimation/ScoobyDooOnZombieIsland'', but years later the film is still remembered fondly among the cavalcade of DTV films, particularly due to the introduction of the series' most famous [[EnsembleDarkhorse darkhorses, the Hex Girls]], and the presence of ''Tim Curry'' as the [[spoiler:film's main villain]].
* EnsembleDarkHorse: The Hex Girls became instant fan favorites upon their debut, especially in regards to environmentalist and [[LGBTFanbase gay subcultures]], going on to appear in several [[CanonImmigrant following works]] and becoming integrated into multiple tie-ins. The fact that they ended up inadvertently becoming the face of the eco-goth movement proves how their staying power is so great that it goes beyond the standard ''Scooby-Doo'' crowd.
* EvilIsCool: [[spoiler:Ben and Sarah Ravencroft]] once the former starts throwing around his magic and revealing his BatmanGambit, and the latter pulls an EvilerThanThou on the former as soon as she is summoned.
* SugarWiki/HeartwarmingMoments: In a meta sense. Ben Ravencroft's first attempt at the dark incantation ("Bring back one who cannot die--!") is quickly followed by [[LongRunner Scooby-Doo]] arriving on the scene. It's an AstonishinglyAppropriateInterruption when you remember that the ''Scooby'' franchise was on a strong rebound by this point.
* HilariousInHindsight: The quirky but endearing ally to the main character who has a single-minded obsession turning out to be a villain plotting to recreate the world in his own image by calling on a higher power is this when ''VideoGame/PokemonLegendsArceus'' used the same plot with [[spoiler:Volo]].
* KarmicOverkill: Despite being a manipulative wannabe conqueror, some felt [[spoiler:Ben Ravencroft's punishment of being dragged to a dimension of torment with his ancestor is too excessive, assuming that the book burning afterward didn't hard-kill them both. Especially since he realized his mistake and turned on Sarah when she revealed how destructive she is.]]
* NarmCharm: "Earth, Wind, Fire, and Air", while cheesy, is still an upbeat, catchy song with a heartfelt, if a bit {{Anvilicious}}, message about caring for the environment.
* NarrowedItDownToTheGuyIRecognize: Anyone who is familiar with [[spoiler:Creator/TimCurry]]'s filmography will likely suspect long before the finale that [[spoiler:Ben Ravencroft is [[EvilAllAlong secretly evil]]]].
* ObviousJudas: Guessing who the villain was became a pointless game the moment a character voiced by [[spoiler:Creator/TimCurry]] was introduced, unless a young viewer was not familiar with his large, villainous body of work.
* SugarWiki/SheReallyCanAct: Not that anyone doubted the talents of the versatile Creator/TressMacNeille, but the BigBad WickedWitch [[spoiler:Sarah Ravencroft]] is perhaps one of the most, if not ''the'' most, intensely villainous roles she's ever played.
* SignatureScene: Given the Hex Girls' popularity among fans and the catchiness of their songs, it's unsurprising that the scenes most people think of first are the band's practice performance where they're introduced to the whole gang (performing "I'm a Hex Girl") and their concert at the end (performing "Earth, Wind, Fire, and Air").
* SpoiledByTheFormat: The typical ScoobyDooHoax has been solved -- the townsfolk were making up the ghost sightings to boost tourism. Guess it's time for the gang to relax and... wait, why are there still 25 minutes left to go? [[spoiler:And why has [[ObviousJudas the character voiced by Tim Curry]] not done anything evil yet?]]
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