As is typical for the series, the Pokédex provides this... and not just Defanged Horrors either.
"The fate of the ships and crew that wander into Jellicent's habitat: all sunken, all lost, all vanished." ~ Jellicent's PokéDex entry.
You would think something that looks so frilly and harmless would have much more cheerful Pokédex entries...
The White Pokédex entry states that "Their favorite food is life energy." Cross that with the scary Black Pokédex entry.
It gets worse; they were originally created to be pure Water-type Pokémon, with innocent connections to princes and princesses, but Game Freak made them Darker and Edgier by adding a Ghost-type to them.
It gets worse than that. Jellicent is 7'3" tall. Imagine: a 7'3" tall ghostly jellyfish/water demon causing ships to crash and crew members to vanish (or drown).
Frillish is no saint, either. Frillish (who's only 3'11) paralyzes its victims with poison, then drags them five miles below the surface.
The real horror? Every game before this one has a large sea area with lots of swimmers but here? Only 1 place full of badass swimmers close to what might be an Eldritch Location/God's summer house. Oh and also unlike every previous generation there are no ships around. Reality Subtext to since some jellyfish spawn in such numbers around Japan to be pretty devastating
Worse still, Frillish and Jellicent are both Ghost-types, so any attempt by humans to fight them off without Pokémon would be completely futile. Imagine vainly attempting to fight one off as it drags you to the depths paying no attention to your struggles.
In Black 2 and White 2, it's said that Jellicent makes undersea castles from the ships that it sunk. So you have a regal, ghost jellyfish based on a Japanese sea demon that causes shipwrecks, kills people, and uses the flotsam and jetsam left behind to make a house. Good luck sleeping tonight and going in the water ever again.
Litwick, Lampent, and Chandelure. Their Pokédex entries generally mention sucking the life force out of a person, in Chandelure's case it leaves the person's body behind, and generally mentioning luring victims with their fire, which is a shame because Litwick is the cutest out of the three and knowing that it can steal your soul makes this sad and scary.
Even worse, Black and White 2 actually point out Litwick's Pokedex entry. There's a girl you fight in the tower where you find wild Litwick, who has a Litwick herself. After the battle, she claims to feel tired. Leave and come back, and she's gone.
Actually, you can find her in the Mistralton Pokémon Center later, so at least she's not dead. Though she does still talk about how she feels tired after battles, so that doesn't help much...
Imagine the thought of his plans coming into fruition. He also had the Adamant, Lustrous, and Griseous Orbs...
This man is the undoubted god-king of Fridge Horror in the Pokémon world. Let's list some of the things that are wrong with him:
One of the Seven Sages mentions that N and Ghetsis might not be related after all. This is true. N's mother is apparently dead/abandoned him, the same for father, as N is confirmed to be an orphan, the same for Anthea and Concordia (they revealed that fact themselves). He was raised by Pokémon in forest until Ghetsis took him in.
It's revealed at the end that the Pokémon Team Plasma stole were enslaved into building N's castle, possibly among other things. This likely happened before N was born, no less when he was crowned as King. So how many of these enslaved Pokémon did Ghetsis double as the abused Pokémon to send N to play with?
If Ghetsis did take over Unova (and he was dangerously close to doing so) the whole Unovan economy would be a complete wreck. Remember that in the games, pretty much everything revolves around Pokémon.
To get an idea how creepy he is, check out his battle music.
And in the direct sequels? Just before you can try to fight him, Ghetsis will instruct Kyurem to freeze the protagonist alive. This is done so he/she can watch Ghetsis rise to power. Not to mention that he tried to freeze by surrounding the protagonist with icicles and it looked like he's going harm/kill the protagonist instead.
Also in the sequels, check out his battle music's remix. It definitely matches his current mental state.
Relic Castle. See the Fridge Logic page above. Now it becomes horrifying to think about... Basically, Unova is modeled after New York. The Relic Castle consists of two, broken towers. The Ghost type Yamask and Cofagrigus can be found inside. Yamask is said to be a human soul that remembers when it was alive, carries a mask that used to be its face, and cries over being dead. And now, it haunts The Relic Castle, which, as stated earlier, consists of two broken, burned down towers, in a fictional region based off of New York. Let that sink in for a second.
Its evolution Cofagrigus is no better- it eats humans and turns them into mummies like Yamask. Now you know how these guys reproduce!
And you can breed them!
To make things a little clearer, Route 4 and Resort Desert are said to be Ground Zero.
N's Room. Oh man, N's room. Picture this: you walk through two huge, grandiose doors, and suddenly you hear an extremely creepy music box. Cut to inside the room, you find that it's the kind of room a baby would have. The room is brightly decorated with cloud designs, there's a basketball court, a skating ramp, a train set, a bed, etc. All of them are practically rainbow-colored, and the room belongs to someone clearly no younger than at least his late teens.
Maybe, some of those things are something a kid N's age would play with but the mixture of things still implies N's life was very isolated
To make it even more creepy, some of the toys move on its own. The game tells you that they've recently been played with, but if you look closely, most of them are defect in one way or another. The train tracks aren't complete and up in the basketball basket, there's a train hanging. And then if you examine the half pipe, you can read about scratches from Pokémon on its sides. Now imagine how these scratches could have come about...
Kyurem. It holds a town in fear, is said to periodically "steal" people and Pokémon, and when you actually go to catch it, you can't walk up to it immediately, but have to wait for it to cause a blizzard so you can walk over on the snow.
The area it's in. The Giant Chasm right next to the town, a pier to see the very chasm from the top, isolated in a creepy mist. The bottom has high leveled Pokémon and random things scattered all over the forest area clearly left by previous trainers and humans that had wandered into it, then when you reach the center where the apparent Pokémon crash landed from space(According to the townsfolk at least). You hear a loud bellow and suddenly the forest is caught in a flash freeze and the previously blocked off cave has a clear path, with the dragon waiting for you.
On the other hand, there is absolutely no evidence that any of this actually happens (aside from the blizzard thing). Given the inhabitants of the Pokémon World's usual propensity to believe made up and exaggerated rumors (or things that just can't possibly actually be happening ie. the Pokédex), Kyurem could just as easily been waiting around in the middle of nowhere for a trainer to come along (like pretty much every other legendary).
Kyurem becomes even more terrifying, and becomes an utter Woobie, Destroyer of Worlds when you learn that it just wants to be whole again. Black 2/White 2 heavily implies that Kyurem was the original dragon that was once part of Reshiram and Zekrom before being split into three dragons. Imagine having parts of your being torn from you and being reduced to nothing but a frozen zombified shell of your former self longing to merge with what was once part of yourself. It makes you want to both hug Kyurem and run away from it.
Beheeyem. Look at its Pokédex entries. To sum it up, it can easily rewrite or erase its opponent's memories with little to no effort!
It gets worse, Beheeyem can use its psychic power to squeeze your brain.
Gothitelle's cry. That's right, you have a Pokémon whose cry sounds like the one used in the shower murder scene to Psycho!
Hydreigon. First there's the fact that it lost one of its brains upon evolving, and the fact that the "heads" on their arms aren't true hands but aren't quite heads either (they have no brains and are rather primitive compared to the main head)... Now imagine one of those things going and eating and killing everything in sight with its three mouths, as its Pokédex entries hint. Considering the one person in the main story who actually owns a Hydreigon, and the fact that he probably wouldn't lift a finger to stop it if that happened...
The Pokédex entry in Black says that anything that moves is considered an enemy to it, triggering it to attack. It's no push-over.
In a more specific sense, its Pokédex entry in Black and White 2 says that it responds to movement by attacking and "devours anything in its path!" The exclamation point there puts emphasis on how scary it implies.
Consider the fact that only one of Hydreigon's heads has a brain. Now consider that its pre-evolution, Zweilous, has two heads with brains. What happened to the second head?
Either it lost, or the brains just fused
That assumes one of the heads survived. Considering it has two brainless heads the heads of it's previous form likely killed each other and it grew a third one from the shock in order to survive. Now consider that Ghestis has a vastly under-levelled one, he may have killed the heads himself.
Also Ghetsis has a Hydreigon that is higher level (and much tougher) than both legendaries you and N can get. If he'd got around to battling N after defeating you, he'd probablykillhis own son.
Want to make Hydreigon even scarier? It's looselybased off ofKing Ghidorah. Ghidorah is known to utterly wipe out entire cities and has even wiped out life on entire planets. Considering how Hydreigon gladly attacks/eats everything in sight, who's to say it couldn't cause a mass extinction as well?
How about Eelektross? They can suck in prey with their mouth, and then shock it with electric fangs. And they can come out of the ocean and just drag in its prey, so it won't flee. Uh-oh.
Bear in mind that if your muscles are receiving that much electrical stimulation, they're going to be paralyzed a la what Jellicent does with poison.
Oh yes, and Eelektross is also about the size of an adult man. It's never specified exactly what it eats, but it could in all likelihood be people.
Eelektross is pure Electric-type. Think you're fine if you have a Ground type Pokémon with you? Think again. Eelektross' ability is Levitate, which renders Ground-type moves useless. In other words, if you encounter one of these things, you're pretty much done for.
To quell your fears, just have a Golem. It's Rock/Ground, effectively making it able to use strong, Rock-element attacks like Stone Edge, and the fact that it has high powered moves such as Explosion to throw around. And since Eelektross evolves via Thunderstone, it is mercifully a rare creature. Eelektross also learns no Water-type moves, despite being based on a water-dwelling animal and most likely living in the water itself.
Eelektross learns Grass Knot, Golem's death sentence.
Just pack a Haxorus. Mold Breaker bypasses Levitate, meaning you can smack it extra-hard with Earthquake. It outspeeds Eelektross, so Dragon Claw isn't an issue.
The ghost girl in the bridge. When you talk to her, she'll disappear (even creeping out an NPC that was next to her!). At the end of the bridge, an old lady will ask you if you saw her, and that the girl had an Abra, who she used to play with, but one day suddenly disappeared, and was never seen again.
Maybe she used her Abra to teleport to make her disappear?
She is an actual ghost and she shows up in Black and White 2 and even tells you that the Lunar Wing failed to save her before giving it to you. those who played Diamond and Pearl will come to the conclusion that Darkrai killed her.
The worst part is that the text in the mansion states that that her father left to find the Lunar Wing, yet she begged them to stay (voicelessly, of course). The implication that loved ones have to be present to stave off absolute death from the nightmare... Makes you really glad you helped that Sailor in DP Pt.
Scolipede, an eight-foot long giant centipede that is highly aggressive and attacks its prey with its large horns and poisonous spines on its neck. Its signature move is rolling over you with its 442 pound body, is very fast, and it roars!
The ride on the Ferris Wheel with N is pretty unsettling.
N: [Team Plasma's] not here. Let's ride the Ferris wheel and see if we can spot them. I love Ferris wheels... The circular motion... The mechanics... They're like collections of elegant formulas.
Yeah, okay. That's not creepy at all. And like an idiot, you have to follow him into the car. Then, as it climbs higher and higher, the camera zooms in on the two of you in the car, and N starts calmly explaining who he really is.
N: First, I must tell you... I am the king of Team Plasma. Ghetsis asked me to work with him to save Pokémon.
And you just recently saw this group was willing to brutally abuse a Pokémon with absolute zero empathy, and they stole a Pokémon from one of your best friends. Not to mention that N had been pretty creepy even before the whole 'Team Plasma' reveal, babbling about perfect equations and needing power and how the two of you are going to befriends.
It gets even creepier when you next encounter him at Chargestone Cave, where you get a Jump Scare from the Shadow Triad, who forcibly take you to him upon which he casually remarks that he told Ghetsis all about you and your friends, and had the Shadow Triad do a background check on you. It's even worse if you've already played the game before and know what kind of man Ghetsis really is. He now knowseverythingabout your life and the lives of those you care most about. And N still sees nothing remotley creepy about this.
Granted, it gets less creepy and more sad than anything later on when you realize that N probably sawnothing wrong with trapping someone in a confined space, where they can't use their usual means of defense to protect themselves, and telling them that he's basically the leader of a disturbing Most Definitely Not VillainousAnimal Wrongs Group. He just wanted to talk! And that way you couldn't attack him before he could explain things to you! And he totally wants to be your friend! At which point it crosses over into full-on Nightmare Fuel when you learn whyhe's that way.
The Above becomes more horrifying in Pokémon Special, where White (PokeSpe's incarnation of Hilda) get's shoved out of the Ferris wheel by her own Pokémon after it was convinced by N to join his side.
Musharna when its eyes are open. There's some bad dreams for ya.
Pokemon evolving in this generation games counts too. Watching your Pokemon moving, then suddenly stops, then breaks apart into pieces while they twirl around does not give an impression that they are evolving in a natural growing way.