History NightmareFuel / ScoobyDooOnZombieIsland

* [[FamilyUnfriendlyDeath Their deaths too]]. We see them howl, snarl and screech in agony as they sizzle and fry. We get to see the fur be fried off of the skeletons, which then crumble to dust. [[AssholeVictim They deserved every single second of it, however.]]
** The final deaths of the poor zombies as well, though this is more bittersweet considering their suffering is finally over. They literally decay, and the flesh is literally torn from their bodies.

* The scene where Shaggy and Scooby are nearly drained of their life force by the cat-women.

** Or it's even worse, the cutlass might be covered in BLOOD! Which meant when Captain Moonscar was alive he probably slashed some residents before he got killed by the cat people! The cutlass was probably covered in dried blood from his last victims he killed before he got killed as well!

-->'''Fred:''' Ah... maybe it's... ''[[[WhamShot pulls the head clean off]]]'' [[OhCrap ...real?]]

-->'''Fred:''' ''[keeps pulling]'' It's the fisherman.

-->'''Fred:''' ''[keeps pulling]'' It's the ferryman.

-->'''Fred:''' Ah... maybe it's... ''[pulls the head clean off]'' [[OhCrap ...real?!]]

-->'''Shaggy:''' Like, no.

-->'''Scooby:''' Ruh-uh.
-->'''Fred:''' Well, maybe it's... ''[pulls the head clean off]'' [[OhCrap ...real?!]]

* The revelation, with the announcement of ''WesternAnimation/ScoobyDooReturnToZombieIsland'', that '''''it's not over'''''.

** Jacques' transformation is particularly [[JumpScare scary]]. Imagine this [[FauxAffablyEvil seemingly pleasant]] CoolOldGuy suddenly transforming into a [[AxCrazy roaring and vicious]] cat monster, chasing you down with every intention of killing you, either by draining your life force, or to simply eat you alive, as Shaggy and Scooby surely thought while running for their lives. Simone explains that Jacques wanted {{immortality}}, so they gleefully gave it him in exchange for bringing unsuspecting victims to their island with his ferry. Once he reveals his true colors, Jacques seems much more sadistic and vicious than Simone and Lena. No doubt he was very drunk on power.

** Jacques' transformation is particularly [[JumpScare scary]]. Imagine this [[FauxAffablyEvil seemingly pleasant]] CoolOldGuy suddenly transforming into a [[AxCrazy roaring and vicious]] cat monster, chasing you down with every intention of killing you, either by draining your life force, or to simply eat you alive, as Shaggy and Scooby surely thought while running for their lives. Simone explains that Jacques wanted {{immortality}}, so they gleefully gave it him in exchange for bringing unsuspecting victims to their island with his ferry. Once he reveals his true colors, Jacques seems much more sadistic and vicious than Simone and Lena. No doubt, he was very drunk on the power he got, along with immortality.
** [[FamilyUnfriendlyDeath Their deaths, too]]. We see them howl, snarl and screech in agony as they sizzle and fry. We get to see the fur be fried off of the skeletons, which then crumble to dust. [[AssholeVictim They deserved every single second of it, however.]]

** To make matters worse, the head starts to move a lot. Scaring them more.
* "Who opened a window?!" - [[NothingIsScarier "Nobody! Look!"]]

[[caption-width-right:350:''Oh, you just might die of fright! It's a terrifying time!'']]

''WesternAnimation/ScoobyDooOnZombieIsland'' is widely credited as being the first (if not only) installment of the ''Scooby'' franchise to be genuinely scary, and while plenty of later DirectToVideo movies continued the DarkerAndEdgier aesthetic, few can hold a candle to the one that started it all.

[[caption-width-right:350:''And you just might die of fright! It's a terrifying time!'']]

* The BittersweetEnding where the gang realizes that they really were out of their depth and barely survived. Daphne laments they there's no proof about what happened due to quicksand swallowing up the camera, and they only survived by dumb luck, not by working as a team.
* While the vampire bat monster from ''The Ghost is Here'' is quickly exposes as just another ScoobyDooHoax, it does have a very twisted and frightening face which the camera has a quick close-up of as it chases Shaggy and Scooby.

-->'''Fred:''' Well, maybe it's-- ''[pulls the head clean off]'' ...[[WhamLine re]][[OhCrap al...!?]]

* The zombies. The film pulls no punches when pointing out that they're dead, with many being walking displays of BodyHorror, and there is even a scene where a zombie's head falls off and into Scooby's paws. The kicker: [[spoiler:[[TheReveal terrifying as they are, the zombies were trying to warn everyone away from something WORSE.]]]]
* The appearance of the first zombie: a skeleton is half poking out of the wall of a pit into which Shaggy and Scooby have fallen, then an ethereal green light enters it, causing it to wrench itself out of the wall and regrow rotting flesh. The fact that it's an angry pirate (with a rusty cutlass, no less) doesn't help matters.
* [[spoiler: Simone's, Lena's, and Jacques' transformations into werecats.]]

-->'''[[spoiler: Simone]]:''' [[WhamLine I've been getting away with it for]] [[spoiler: ''[[ReallySevenHundredYearsOld 200 years!]] (cue transformation)'']]
** [[spoiler:Jacques' transformation is particularly [[{{Jumpscare}} scary]]. Imagine this seemingly pleasant CoolOldGuy suddenly transforming into a roaring, vicious cat monster, chasing you down with every intention of killing you, either by draining your life force, or to simply eat you alive, as Shaggy and Scooby sharely thought while running for their lives. Simone explains that Jacques wanted immortality, so they gleefully gave it him in exchange for bringing unsuspecting victims to their island with his ferry. Once he reveals his true colors, Jacques seems much more sadistic and vicious than Simone and Lena. No doubt, he was very drunk on the power he got, along with immortality.]]
* [[spoiler:[[FamilyUnfriendlyDeath Their deaths too.]] We see them howl, snarl and screech in agony as they sizzle and fry. We get to see the fur be fried off of the skeletons, which then crumble to dust.]] [[AssholeVictim They deserved every single second of it, however.]]
** [[spoiler: The final deaths of the poor zombies as well, though this is more bittersweet considering their suffering is finally over. They literally decay, and the flesh is literally torn from their bodies.]]

* The scene where Shaggy and Scooby are [[spoiler: nearly drained of their life force by the cat-women.]]

* The part where Fred tries to prove the zombie isn't real:
--> '''Fred:''' *trying to pull the "mask" off* It's the gardener!
--> '''Daphne:''' No.
--> '''Fred:''' *keeps pulling* It's the fisherman.
--> '''Shaggy:''' Like, no.
--> '''Fred:''' *keeps pulling" It's the Ferry Man.
--> '''Scooby:''' Ruh-uh.
--> '''Fred:''' Well, maybe it's- *pulls the head clean off* ... [[WhamLine re]][[OhCrap al...!?]]
** To make matters worse the head starts to move a lot. Scaring them more.

* The [[FlashBack flash back]] revealing Simone and Lena's [[BackStory back story]], specifically when [[spoiler: the pirates force their family and friends into the water to be [[EatenAlive eaten alive]] [[FamilyUnfriendlyDeath by]] [[CruelAndUnusualDeath alligators]]. Doesn't justify their horrific actions, but one can't help but [[CryForTheDevil sympathize]] at least a little for their tragic past and their desire (though it becomes truly monstrous) to exact revenge on the pirates.]]
* The moans of the zombies sound pretty ethereal, and very inhuman - especially when we first meet the undead Morgan Moonscar. [[spoiler: Becomes even more terrifying when later it's revealed that this inhuman moaning and groaning is literally the undead's ''desperate'' attempts to save the gang from suffering their fate.]]
* The sheer number of zombies shows just how many poor people [[spoiler: had their life drained by Simone, Lena, and Jacques.]]
* The entire "It's Terror Time Again" sequence. This was a chase scene unlike anything before in the franchise. The usually cheerful gang who've never been in such peril are ''running for their lives'' from a horde of ''real'' undead monsters. Never before have the gang looked so terrified. And the epic song by Skycycle is an aggressive (and AWESOME) assault on the senses to really hammer it home; after all these years, it's terror time again!
** Even upon rewatch [[spoiler: when you know the zombies aren't actually trying to hurt them]], it's still pretty frightening, because [[spoiler: the quicksand, alligators, and venomous snakes they keep blindly running into as they flee]] are still very, very dangerous.
*** Even worse when you consider that this is probably how [[spoiler:Simone and Lena]] got ahold of a lot of their victims. Either finding and dragging back people who were injured due to the inherent perils of the bayou to kill them, or opening up their arms and their home to these terrified people running from the monsters, [[spoiler:only for them to run into a much worse fate]].
* The revelation that [[spoiler: there really is a malevolent, or at the very least vengeful and capricious cat-God in existence that was partly behind Simone's reign of terror]].
* The poster itself is pretty scary. It's big in scope, with the heroes looking on at something, terrified and on the run in a spooky bayou. Meanwhile, some truly frightening looking zombies are overlooking the poster from the sky, and we also finally have a scary gothic castle in the distance in front of the full moon. [[note]]While one may think that the castle will be TheVeryDefinitelyFinalDungeon, it's only featured in the prologue[[/note]] Is this a poster for a BigDamnMovie or what?
* The BittersweetEnding where the gang realizes that they really were out of their depth [[spoiler:and barely survived]]. Daphne laments they there's no proof about what happened [[spoiler:due to quicksand swallowing up the camera]], and they only survived by dumb luck, not by working as a team.

* The revelation, with the announcement of ''WesternAnimation/ScoobyDooReturnToZombieIsland'', that '''''it's not over''''.

--> '''Fred:''' Well, maybe it's- *pulls the head clean off* ... [[WhamLine re]][[OhCrap al!]]

* [[spoiler:[[FamilyUnfriendlyDeath Their deaths too.]] We see them howl, snarl and screech in agony as they sizzle and fry. We get to see the fur be fried off of the skeletons, which then crumble to dust.]] [[AssHoleVictim They deserved every]] [[KarmicDeath single second of it, however.]]

** [[spoiler:Jacques' transformation is particularly [[{{Jumpscare}} scary]]. Imagine this seemingly pleasant CoolOldGuy suddenly transforming into a roaring, vicious cat monster, chasing you down with every intention of killing you, either by draining your lifeforce, to simply eat you, as Shaggy and Scooby sharely thought while running for their lives. Simone explains that Jacques wanted immortality, so they gleefully gave it him in exchange for bringing unsuspecting victims to their island with his ferry. Once he reveals his true colors, Jacques seems much more sadistic and vicious than Simone and Lena. No doubt, he was very drunk on the power he got, along with immortality.]]

* The revelation that [[spoiler: there really is a malevolent, or at the very least vengeful and capricous cat-God in existence that was partly behind Simone's reign of terror]].

* [[spoiler:[[FamilyUnfriendlyDeath Their deaths too.]] We see them howl, snarl and screech in agony as they sizzle and fry. We get to see the fur be fried off of the skeletons, which then crumble to dust.]] [[AssHoleVictim They deserved every single second of it, however.]]

* [[spoiler: Simone's, Lena's, and Jacques' transformations]]

* [[spoiler:[[FamilyUnfriendlyDeath Their deaths too.]] We see them howl in agony as they sizzle and fry. We get to see the fur be fried off of the skeletons, which then crumble to dust.]]

-->''And you just might die of fright! It's a terrifying time!''

-->'''Daphne:''' You won't get away with this.
-->'''[[spoiler: Simone]]:''' I've been getting away with it for [[spoiler: ''[[ReallySevenHundredYearsOld 200 years!]] (cue transformation)'']]