[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/wendigolosttapes_2645.jpg]]
[[caption-width-right:350:My name... is Lane Corey...]]
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* The freakin' Reptilians! They can take on any form, are smarter than us, and have infiltrated pretty much ''everywhere''. If you get marked, they can find you no matter where you go. Then they wrap you in this weird plastic stuff that asphyxiates you but also keeps you alive and unconscious. They clearly need live humans for something, but for what?
* I'm surprised no one has mentioned the Monster of Monterey episode. Just the thought of being stuck out at sea, with no one to help you, you can't contact the coast guard, you've got a friend on a live newsfeed, hearing everything that happens, and you're suddenly knocked overboard, the rope holding you to the boat snaps, and you drift off, screaming, while you hear your friend calling your name on the laptop. Make matters worse by throwing in [[spoiler: a plesiosaur dragging you under and you can't see it]] and you've got prime Nightmarefuel.
* Some episodes manage to be truly scary: ''Zombie'' has some real jump-inducing moments. ''Poltergiest'', ''Strigoi'' and especially ''Devil Dragon'' tend to stand out.
** ''Poltergeist'' especially, particularly the feelings of hopelessness that come up as [[spoiler: the documentary crew is killed one by one, especially the circumstances under which they all die: the woman in the wheelchair is thrown against the wall and convulses as the poltergeist [[DemonicPossession possesses her]] to tell the others to leave; the cameraman is killed, ''blood comes from his eyes'', and he just stays standing there like he's in a trance rather than dead; and their asthmatic leader is lured upstairs by what sound like cries for help, only to be confront by the poltergeist--which only he can see--and is stabbed to death]]. Holy fucking shit.
** The clincher? [[spoiler:By the time the cameraman dies, the leader ''[[DespairEventHorizon gives up]]''. He immediately starts screaming "Okay! You win!" to the poltergeist in a terrified voice before desperately trying to escape. But the poltergeist isn't satisfied with them leaving the ''normal'' way. No, he wants them to leave in body bags. [[TheBadGuyWins And that's exactly what he gets]]]].
* ''Owlman'' had some nightmarish moments, including how the girl seemed to draw him, and see him everywhere. He wants girls for eating, and who knows what else. ''Hellhound'' was worse.
** The part where he ripped the old lady from the earth, the one he had been pursuing, was also rather frightening. Leading to many Owlman related nightmares for me.
*** That and the impending FridgeHorror that the little girl could be next.
*** Said little girl is presented as a trauma-induced CreepyChild who got an up close and personal encounter with [[HumanoidAbomination The Owlman]]. Between her NightmareFuelColoringBook chalk drawings and CreepyMonotone, she's essentially a more [[TheWoobie woobie-ish]] NightmareFuelStationAttendant, but the following line from her is pure ParanoiaFuel.
-->'''Sue Ann''': It knows you're here to stop it. And it's coming back to stop ''you''.
* Let's not forget ''Wendigo'', as seen in the above Trope Image. Not only was it surprisingly good special effects and acting, the clips of him approaching the DespairEventHorizon after a week of no food hit ''really'' uncomfortable places. Paraphrased conversation:
-->'''Girl:''' We can't just leave her [their injured friend] here!
-->'''Guy:''' I'm not saying that, but we can barely look out for ourselves!
-->'''Girl:''' Well, what other plan do you have?!
-->'''Guy:''' (guilty silence) How long has it been since you had something to eat?
-->'''Girl:''' ...You're sick.
** That ENTIRE episode counts as High Octane Nightmare Fuel.
** Good lord, the fucking Wendigo. YMMV be damned, that thing is one of the scariest monsters on the show. To top it off, it has what looks like ''A DEER'S SKULL'' as a head. Sweet dreams.
** The thing that makes it ''truly'' scary is that Wendigo psychosis ''is quite real''.
** Knowing the myth of the Wendigo makes it even worse, and they tell you it during the episode. Pretty much, it's an unstoppable killing machine that can ''never'' be full. It'll stalk you until it gets you, no matter how much it's eaten it'll just keep coming after you until it's got it's claws on you.
*** And no matter where you run, it will get you. Because [[RealityWarper it can travel through time and space to get you]].
** The scariest parts of the episode were the climax and ending: [[spoiler: Imagine being trapped in a dark cave at night with the Wendigo coming towards you and the ending has the Wendigo staring right into the camera.]]
*** Unsurprisingly, the Wendigo episode was [[http://animal.discovery.com/tv/lost-tapes/episode/ voted the scariest]] on the official site.
** The FridgeHorror at the end: [[spoiler:Matthew, the Wendigo himself, was never seen again after the incident...there's a good chance that he's still alive...[[ParanoiaFuel and still hunting...]]]]
* In ''Skin-Walker'', something sounds exactly like Brian's mother, and it's genuinely frightening.
* The ending of ''Devil Dragon'': [[spoiler: the naturalist gets dragged into the bushes by the giant lizard and is eaten.]]
* The scene from "Vampire" when the vampire was sneaking up on the boy while he was sleeping.
** The entire Vampire episode. These are NOT your [[{{Dracula}} aristrocratic vampires]] or [[{{Twilight}} crappy sparkly wusses]]. These vampires are horrifying.
*** To paint a picture; imagine a cross between a vampire bat and an ape with extremely sharp teeth and claws and a HairTriggerTemper. Now picture it chasing you, with the intent to render you hollow of blood. Oh and sunlight? Yeah it doesn't do ''squat'' to it.
** The Stigoi Vampire episode is ''worse'', because it's a ShapeShifter and ItCanThink.
* ''Thunderbird'' focuses on [[AdultFear three small children]] going into the woods to skate. [[FromBadToWorse One of them falls and breaks their leg]] while the other two go to try and get help, all the while the 'helpful' facts are informing us about what [[CruelAndUnusualDeath happens to the bird's victims..]]
** While possibly driven less by a rational choice and more by panic, one of the older kids (incidentally the same one that accidentally broke the kid's leg) suggests to the other that they ''[[KidsAreCruel leave the young boy to die out there]]''.
* ''Dover Demon'', for all its Blair Witch-iness, taps into the fear of something with gangly limbs and giant eyes coming at you in the dark. [[spoiler:And then the night vision comes on.]]
* ''Alien'', the FridgeHorror ending.
** And the titular monster's chestburster quality; this thing ''literally'' [[{{Gorn}} rips its poor host apart]] when trying to escape from her body.
* The end of the Hell Hound episode. To be fair, the whole thing is pretty freaky, but the bit at the end, with the car crash, and then the girl talking to the camera
* Some of the corpses that appear in the aftermath of a monster's rampage are pretty [[NauseaFuel unnervingly realistic]]. ''Devil Monkey'', for example, features the lovely image of a man who was '''''[[{{Gorn}} graphically ripped in two]]'''''.
** This is only nightmare fuel if you think about it, but some descriptions of what happens to some victims can be even worse. For example, in ''Lizard Man'', the news crew is stated to have been [[spoiler: partially ''eaten'' after the Lizard Man got them]]. And also in ''Devil Monkey'', at the very end, it's stated that [[spoiler: the bodies of all the characters presented in the episode were found--except for the teenager who reappeared halfway through because he survived--but they were so badly mutilated that they could only be identified by DNA and dental records]]. Just think about that for a moment. *shiver*
* In the ''Chupacabra'' episode, there's a moment where the little girl drops her camera which then catches her running away. She looks back, screams, and runs even faster. When it cuts to the pre-commercial title card, we hear her parents screaming and crying and the chupacabra snarling. The implication? That the little girl ''[[TearJerker saw her parents getting mauled to death by that thing.]]'' Definitely [[HarmfulToMinors NOT]] something a little kid should be witnessing.
** Not only that. The ENTIRE episode can count as Nightmare Fuel. For one, we never actually see the Chupacabra. We just hear itīs horrifying sounds and the aftermaths of itīs rampage, but that only makes things WORSE. Also, even though the beast is shot at the end of the episode, there is nothing that confirms itīs death, so for all we know it could very well have gotten away and still be at large...
* Most of the other creatures are definitely disturbing and/or creepy as well as good for jumpscares the first time around, but ''Zombies'' and ''Poltergeist'' are just plain unsettling time and again. It's probably because they instill an [[PrimalFear irrational fear that makes one reluctant to go into dark places]].
** One can say the scariest are the ones that is most likely to happen in real life. Like the "Wendigo" episode.
* If you have any fear of insects, even in the least, "Death Crawler" will make you hide under the bedsheets.

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