An Arm and a Leg: Rarity loses one of her legs when she rescues Gem Sentry from Nightmare Clockwork.
And I Must Scream: Grey Hoof's ultimate punishment: Celestia imprisons him in the ruins of Sunnytown, and places a geass on the village to turn away forms of life from Sunnytown's former location, as Sunnytown has also shifted dimensions so that Grey Hoof can't be seen by anyone else. And to add insult to injury, Celesita's spell also prevents Grey Hoof from going insane.Proof that you should neverpiss Celestia off.
When Rarity is brainwashed by Nightmare Cuddles, he leaves enough of her intact that she knows what she's doing and can't stop it.
All a Part of the Job: Fine Print. He knew that Flim and Flam were scumbags when they hired him. However, they paid his fee in full, so he was obligated to do his job. Apple Bloom understands though.
The BLUs often claim this as their reason to protect Ponyville - they're hired, so they do their job. Of course, they soon develop more personal reasons for protecting the town.
Always a Bigger Fish / Authority Equals Asskicking: A mind-controlled Barricade picks a fight with Princess Luna, hoping that an alicorn might provide a decent challenge. She does. In the same chapter, a mind-controlled and dragoned-out Spike finds out for himself why dragons do not threaten Equestria anymore.
Twilight: " Barricade, is it really the Doctor you hate?"
Art Shift: The WITNESS chapters. They're short, in all caps, and KnightMysterio claims that he only gets error messages when he tries to view them.
Ascended Extra: Although the latter two were never truly extras in the traditional sense, Derpy, Zecora, and Trixie have their roles greatly extended from the TV Show as the Elements of Love, Trust, and Hope, respectively.
Brickhouse, one of the Jerk Jock pegasi that gave Rainbow Dash a hard time, is killed by Princess Celestia while Slendermane is controlling her.
The Atoner: Spy, before the war games. He was a collaborator for the Nazis in return for his town and family being spared, until just before the Normandy invasion... when he discovered that the town had been taken, and his mother raped to death. After killing every Nazi in the area, he was prepared to kill himself when he heard of Soldier's rampage across Europe, and instead started secretly providing him with Nazi information so Soldier could wipe out the whole chain of command, all the way up to Hitler himself.
Badass Finger Snap: Christian Brutal Sniper does this a few times as he imprisons the BLUs and element bearers in a shared dream.
Bad Dreams: Slendermane and The Nightmare both do this to the protagonists.
Also, Pyro gets these.
Bag of Spilling: The BLU team loses all their gear, with the exception of Spy's butterfly knife, upon arriving in Equestria. They can mimic some of their lost abilities with magic, however.
Batman Gambit: Spycora pulls one against Nightmare Clockwork. In order to get past a corridor fuilled with death traps, She uses some magic dust (a Zecora trait) to create a smokescreen to hide, knowing that Clockwork would most likely panic and fire off all the traps. True enough, Clockwork does indeed fire off all the traps, only to find that Spycora didn't move at all, and simply walks past all the traps as they reset. And then, just to rub it in, she lights a cigarette off of some smoldering flames left by a laser beam trap.
Beat Them at Their Own Game: Nightmare Doctor summons phantoms of numerous threats Equestria has faced in the past. Twilight destroys them with phantoms of what bested them in reality.
Be Careful What You Wish For: Grey Hoof is the only one of his group who's glad that their curse is lifted. Everyone else is too busy being horrified at the cost.
Because You Were Nice to Me: Grey Hoof's friends experienced friendship and love in Ponyville for the first time in ages. They unanimously choose not to abandon the town, even if it means getting cursed again.
Berserk Button: The biggest button for any of the mercenaries, BLU or RED, is hurting a teammate when there's no Respawn available. Hurting one will bring the wrath of God in the form of the other eight mercenaries down on your head. It's even worse if you hurt an Engie and a Pyro finds out about it...
Even insulting Engineer around Pyro is a very bad idea.
Beware the Nice Ones: Princess Celestia is a Reasonable Authority Figure who's quite calm and collected most of the time, but she really hates Slendermane, and is truly enraged, something that she hasn't been in years, when chasing one of its minions.
Also, when she discovers what's been happening in Sunnytown she curses the entire town. The inhabitants turn into zombies, and "live" long enough to go crazy and recover again.
Big Damn Heroes: Trixie shows up just in time to interrupt a possessed Twilight. Mayor Mare also has her moments, unexpectedly taking down minor villains with her lead pipe.
Luna gets two of these in quick succession when she arrives in Ponyville to protect it from the latest Nightmare attack.
Luna: "NIGHTMARE JUGGERNAUT! WE WOULD HAVE WORDS WITH THEE!"
A small army from Canterlot arrives in Ponyville just in time to battle the giant robot army that's attacking.
Big Damn Villains: Just as Nightmare Gardener managed to bind all the fusions, the BLUs, the Elements of Harmony (including PRINCESS TWILIGHT SPARKLE), Barricade, the Doctor, and the hostages, the night is saved by the changelings.
The Big Girl: Barricade. She's bigger than Heavy, who is bigger than even Big Macintosh. Queen Chrysalisnicknames her "Family-Size."
Big "WHAT?!": Masky Pegasus, during his jail break, corrupts Heavy into, of all things, a plush toy named Nightmare Cuddles. It was not something it or anypony expected.
Pyro and Medic also get one when Spy asked if Discord living with Fluttershy was true.
Bi the Way: Applejack and Rarity used to date. It ended because of their clashing personalities.
Celestia slept around with any stallion or mare that was interested during the fifty years she spend drunk off her horn.
Orion, although "bisexual" is far too narrow to describe him. Since he is in fact Jack Harkness in pony form.
Blessed with Suck: Spy can disguise without his disguise kit now. It turns out that's because he's a changeling, and part of the changeling hive mind, meaning that Chrysalis can control him.
Body Horror: The zombie curse. It's described in great detail. Medic can feel wind blowing in his ribcage.
The villain of that arc has a very disturbing Transformation Sequence. His skeleton, and only his skeleton, grow to the size of an alicorn. He also grows bone wings and a horn. As expected, this tears his flesh apart.
Body Swap: Twilight knows a spell to do this. She's very reluctant to cast it, though, as it can go wrong in a number of ways.
Grey Hoof and his buddies were insane for part of the time they spent as cursed zombies in Sunnytown. Eventually, they got better.
"At least it is fucking warm out here," the disembodied [BLU Spy] head said. "I've been in zat goddamn fridge for years now. Do you know how many times I've gone insane and recovered? THREE TIMES! And STILL zis bastard wouldn't kill me!"
Borrowed Catchphrase: Heavy, Engineer, and Solider borrow Big Mac's "Eeeyup" when Big Macintosh comments that Pyro isn't right in the head.
Brainwashed and Crazy: Slendermane is a very psychological villain, so this happens to a lot of people. All the Nightmares are cases of this.
During the "Nothing Can Stop it" arc, the Masky ponies do this to Spy, Fluttershy, Twilight, and Spike, as well as some guards.
Nightmare Doctor does this to Lyra and Bon Bon.
Nightmare Cuddles does this to Barricade.
This slowly happens to Princess Celestia, culminating in the end of Quick Little Gashes.
Scout: I'm not sure I wanna see where this fanfic goes next...
Brought Down to Normal / Brought Down to Badass: Twilight Sparkle. During Discord's relapse, Alicorn!Twilight fought him and was partially the reason why Fluttershy was almost killed. She then depowered herself due to viewing herself as unworthy.
The BLU team is considerably less effective without their equipment. Doesn't stop them from being able to put up quite a fight.
Brown Note: Nightmare Harmonic's song in the "Melody of Agony" arc. The first time it's heard, especially loyal ponies start freaking out. The second time, they start to bleed from their eyes. The third time, victims try to kill whoever they are loyal to, to end the pain.
Bully Hunter: According to the tumblr, Trixie makes a habit of ruining the Flim Flam brothers' scams whenever she can, almost solely for her own amusement.
Burning with Anger: Celestia when she discovers that Sunnytown murders anyone who gets a cutie mark.
And again when she senses that some survivors are in Ponyville.
Rainbow Dash does a variant with electricity instead of fire when she finds out Scout got fired from his job at the weather factory on his first day.
RED Medic still has BLU Spy's decapitated but still alive head from "Meet the Medic" in the fridge. Although it's dead now thanks to Slenderman.
Nightmare Doctor weaponized a Call Back, summoning shadow copies of Tirek, Crunch the Rock Beast, Grogar, the Daleks, and Jeff the Killer. Twilight counters by weaponizing a Call Back of how each of those threats where defeated, then finishes off the Nightmare the same way he was beaten the first time: twenty level three sentries.
The author's Tumblr Page often mentions past tidbits, such as:
When someone questioned the Doctor on the existance of Clara, he stated that he didn't know who she was, and hadn't encountered her yet; which places his personal timelime half way through Season 7 of Doctor Who. Justified by his apparent loss of the Pond couple almost immediately prior to his arrival in Equestria, which was the storyline preceding Clara becoming a main character.
The Casanova: Spy seduces the ladies with astounding ease. Even the pony ladies. Medic warns Spike not to mess with Spy over the fact that he's living with Rarity, as he may decide to woo her out of sheer spite. On the other hand, he claims to have had genuine feelings for many past conquests, including Scout's mother.
Cigarette of Anxiety: Spy badly needs one after seeing Discord's reign, before Celestia and Luna intervened.
Clingy MacGuffin: The Elements of Harmony can teleport to their wielders under certain circumstances.
Cloning Blues: Discussed by the BLUs due to their uncanny resemblance to the REDs. Defied by Scout, who comes up with an awesome if illogical justification for why they're better regardless of who's the clone.
Co-Dragons: Masky Earth Pony, Masky Pegasus, and Masky Unicorn to Slendermane. Gray Mann has also taken this position.
Color-Coded for Your Convenience: The BLUs have blue colorations, whether it's their coats, manes or clothes. RED Spy gets a red coat when he crosses over. When the changelings take on the forms of Mann Co robots, they are colored green to distinguish themselves from the actual robots.
Confusion Fu: Derpy fights like this, using her "destructive clumsiness" to her advantage.
Consummate Professional: Sniper, played seriously. (The original game plays it more like a joke.) His dedication is enough to shrug off mind control.
Cordon Bleugh Chef: Rarity's mother. Her big dinner for the heroes moves on its own, glistens in colors no food should be, smells worse than Medic's lab, and tasting it is enough to knock Pinkie Pie unconscious. They need to have the substance incinerated and the kitchen exorcised before anypony can relax again. Rarity mentions being highly resistant to mundane poisons simply from being exposed to her mom's "food". Fortunately she seems to have gotten better after Heavy (a master chef) shows how it's really done.
King Sombra left some artifacts behind which partially corrupted Cadence. She was only physically affected, though, with one of her eyes changing color and her horn curving. Then it turns out that Sombra can possess Cadence now.
Crazy-Prepared: Pinkie Pie, according to the Mann Co robots. Their analysis is that she is either capable of breaking the laws of physics, or she's prepared for any scenario, up to and including dueling with a magical knife-wielding psychopath. Canonically, she could be either, or both.
Dark Is Not Evil: "The Rainbow of Darkness once existed in perfect harmony with the Rainbow of Light. But the greater demon Tirek seized control of it a hundred years before the dark reign of Discord. Its power was corrupted, and thought lost for ages. Researchers believe, however, that the Rainbow of Darkness may have simply retreated somehow, gone into dormancy to purge itself of the corruption Tirek inflicted on it." It seems that The Rainbow of Darkness is what transported the BLU team to Equestria, and they are The Dark Elements of Harmony.
Dark Reprise: Of "Hush now, quiet now" oh so very much. The first time we hear it, it's a soothing lullaby. The second time, it's part of Fluttershy's Mind Rape nightmare. Hearing the song again after that is... traumatic.
Celestia sings "I know for absolute certain/that everything's going to be fine..." after murdering a guard, drinking the Smooze, and hypnotizing Harbinger to cover it up.
Deal With The Eldritch Abomination: Slenderman makes Gray Mann a deal during the "Brutal Sniping" arc. Gray Mann does something for him, and in exchange Slenderman gives Gray Mann some Australium.
Spy makes one with Queen Chrysalis so that he can get the medicine he needs to help his friends, at the cost of a favor.
King Sombra made one with Slendermane for powerful crystals in exchange for becoming its proxy.
Grey Hoof and co. make a deal with Masky Pegasus to be free of Sunnytown and its curse.
Chrysalis tries to make a deal with Slendermane, but it turns out he is only stringing her along for his own amusement. This is one of the motivations for her Heel-Face Turn.
Death Glare: Barricade, Fluttershy's mother, wields a Stare so strong that people who aren't even the targets can feel it.
Death Seeker: Medic. To put it in perspective, when each of the BLUs are being evaluated by the villains, Medic is called "The dead one." Everyone else has a more badass title like "The raging war cry". The only one who comes close is Broken Bird Pyro, who's called "The lost soul of fire".
The influence of the other BLUs has been good for him, though. He says that he probably would have killed himself long ago if he hadn't met them.
The severed spy head Medic's been keeping in his fridge for three years is also looking for death.
Defiant to the End: Barricade's last actions before being Mind Raped are to spit in her attacker's face and yell "Celestia Regina!" It's an expression of loyalty to the throne.
Determinator: Despite facing an unstoppable Eldritch Abomination with no chance of survival, RED Medic absolutely refuses to let Slenderman take RED Heavy, desperately firing Heavy's minigun, Sasha, at the foe. His conviction is so great that he manifests the Dark Crown of Magic and empowers Sasha with Harmony, which is one of the few things capable of actually injuring Slenderman.
Twilight Tragedy knows a spell that can cause enough despair in their victims that their bodies actually shut down.
Deus ex Machina: Far too many to list. Pretty much every mayor fight and crisis gets solved by one at the last minute.
Didn't Think This Through: As Nightmare Cuddles leaves Rainbow Dash and Sniper after using his hypno eyes on them, he realizes that he forgot that Rainbow was currently blind, thus protecting her from the hypnosis.
Dope Slap: Spy does this to Scout whenever he gets fed up with him.
Drowning My Sorrows: Celestia, due to her guilt over what she did to Princess Luna, spent about fifty years drunk off her horn. During that period she approved several laws she probably shouldn't have and has been trying to get rid of them ever since.
Eaten Alive: The gristly fate of Nightmare Gardener. Having her body consist of a mass of extremely poisonous flowers was a good idea - less so when changelings are immune to it and consider it to be delicious candy.
Eldritch Abomination: Slendermane, and quite possibly the Maskies. Even MONOCULUS! was frightened of it.
Empathic Environment: Pyroland starts rotting when Nightmare Moon possesses several of the Element bearers.
Pyroland does this around Slendermane and his more powerful minions.
Empowered Badass Normal: Pyro, Medic and Engineer can use magic as ponies. Spy, Sniper, and Scout can fly. While most of their magic replicates abilities they had before they became ponies, they do have some new abilities. For example, Engineer can construct more advanced sentries, and Pyro has more control over flame.
As a pony, Spy's disguises become actual shape - shifting, and can be maintained while attacking. He can cloak indefinitely as well. It's because he's part changeling.
Fake Memories: Luna does this to everyone in Ponyville but the BLUs and the bearers of the Elements in the aftermath of Nightmare Grave's attack on Ponyville so they don't remember all the Nightmare Fuel they experienced. They instead remember a Lighter and Softer version of events.
Fate Worse than Death: Cutie Fracture, the complete loss of your own special ability and, essentially, a loss of who you are. This is NOT something you can recover from either and drove an affected pony to suicide in the past.
Fighting from the Inside: Cheerilee doesn't take being turned into a nightmare lying down. She manages to slow the Nightmare down and mess with it several times, and then actually escape it.
Flat "What.": During his jail break, Masky Pegasus corrupts Heavy, turning him into Nightmare Cuddles. Masky Unicorn does not find this funny at all.
RED Spy does this when he realizes why Soldier created the Decoy Mv M map.
Spy does this after hearing Soldier's plan before their first battle, which is completely unintelligible because of him using a bunch of gibberish code phrases.
While watching one of Sniper's revenge fantasies, this happens:
Dream Sniper: Release the Snoipahdiles!
Engineer's response upon finding that Gem Sentry, his AI-controlled weapons platform and surrogate daughter, has joined the Cutie Mark Crusaders. Whose latest misadventure has reached the usual "covered in pine sap and no cutiemarks" ending.
Foe-Tossing Charge: Heavy barrels through several corrupted Diamond Dogs to get to Fluttershy.
Forced to Watch: When Sniper becomes a Nightmare, he can still see what he's doing, but he can't stop Nightmare Brutality from trying to kill his friends.
For the Evulz: Virtually everything bad that happens is all part of Slendermane's attempt to torment Celestia to insanity, and we are given NO REASON WHATSOEVER as to why he's doing it. He also strings Queen Chrysalis along with a phony Deal with the Devil just for the hell of it.
Foreshadowing: Applejack gets an odd itching feeling on her neck when Demoman makes a remark about being honest. Rarity and Rainbow Dash gets the same, when Engineer promises to compensate her for the resources he took and when Sniper expresses his dedication to protecting his team. Fluttershy, Pinkie Pie and Twilight Sparkle experiences the same thing, although in Twilight's case the sensation is on top of her head…
PAINis Cupcake decides to kiss Derpy rather than try to eat her. Seeing as he has no compunctions about trying to eat his own teammates, this means a lot.
Friendly Enemy: Even during the war games, when they weren't actively fighting, the BLUs would occasionally form truces and do friendly stuff, such as when the Scouts rigged both bases with pie traps. (Canonically, BLU Soldier and RED Demoman developed a close friendship in the source material until the Administrator ruined it.) Since the war games are cancelled with the deaths of the Mann brothers and the disappearance of BLU, the REDs have cast aside their animosity and are doing what they can to help.
Fusion Dance: The Elements of harmony are each able to fuse with a member of the BLU team. So far the fusions are:
Heavy + Fluttershy = FlutterHeavy
AppleJack + Demoman = AppleDemo
Rarity + Engineer = EngiRarity
Pinkie Pie + Scout = Scoutie Pie
Derpy + Soldier = Solderp
Rainbow Dash + Sniper = Rainbow Sniper
Zecora + Spy = Spycora
Also, presumably in future chapters:
Trixie + Pyro
Twilight Sparkle + Medic
Gambit Pileup: In addition to Big Bad Slendermane messing with the heroes, the nightmare that turned Luna into Nightmare Moon is plotting something that seems to be detrimental to both Slendermane and the heroes. What it is isn't clear yet. Meanwhile, the RED team is working with Merasmus to figure out what happened to BLU.
Genre Savvy: The REDs shoot out the tires of a cop car chasing them for speeding. This exchange occurs:
Godzilla Threshold: Scout decides that they need PAINis Cupcake to defeat Heavydile, Christian Brutal Sniper, and Vagineer.
Go Mad from the Isolation: Happens to the BLU and RED Engineers after being trapped on another planet for 2000 years and trapped in a mine for 1000 years, respectively. They would be long dead if not for Smooze and Australium poisoning.
Gondor Calls for Aid: In Pony vs. Machine, literally everyone, from Mare-Do-Well to the Wonderbolts to the Changelings, gets called in to defend Ponyville from Gray Mann's forces.
Good Is Not Nice: The BLU team, especially with Equestria as a contrast. Just about all of them have some kind of psychological issues, especially Pyro, Soldier, Medic, and Sniper.. They're also much more relaxed about murder.
Groin Attack: Heavy decides to practice applebucking on a pole in an old farmhouse at Sweet Apple Acres. He misses on his first attempt, resulting in this.
Medic threatens to do this to Merasmus with a serrated, rusty scalpel.
Happens to Merasmus by six RED team members at once after he insults them one time too many.
Also to Blueblood after he cops an attitude with the mercenaries. To be fair, though, they did say that Pyro would set his crown jewels on fire.....
Green Thumb: Nightmare Gardener. And now Cheerilee, the pony the latter was based from.
Tropes H - M
Handicapped Badass: After Rainbow Dash is temporarily blinded, Sniper trains her to use her other senses to see. She is able to detect Twilight from the sheer feeling of her magic, whereas she identifies Rarity by her perfume overuse.
The Heart: Scout considers himself and Pinkie Pie to fill this role, being the ones to keep the others smiling when everything feels too grim to bear.
Heel-Face Turn: Chrysalis, after she gets a sustainable source of love to feed her hive. Also, Trixie could be considered this, given her position as an antagonist in the show.
Helpful Hallucination: Pyro's friend Mr Balloonicorn has enough self-awareness that he can look out for her and offer observations that she is unaware of. Since he is also RED Pyro's hallucination, he's aware of what is going on in their original world too, and can relay information.
Heroic Sacrifice: Trixie pulls a non-lethal variant, absorbing two thousand years worth of agonizing memories from Engineer (and another thousand from his conterpart, which was not expected) in order to free him from the Nightmare remnants. It is as horrible for her as you'd expect, and only the knowledge that it's not actually hers make it bearable. The BLUs have a very solid respect for her for this.
Hero of Another Story: Doctor Whooves has saved Equestria at least once before the story begins, and then there's his adventures in canon Doctor Who. Derpy's worked with the Doctor for at least some of his time in Equestria, and saved Trottingham at one point.
Lethal Chef: Rarity's mother, Marsha Mallow. For an example, she found a book called the Chefinomicon and thought it would be just dandy to cook from it. She ends up getting the kitchen haunted by Windigos without even realizing it.
Living Lie Detector: Spy tries a hastily made cover story against Celestia and Luna. As she once bore the Element of Honesty in the Waking Nightmares timeline, Luna retains some of its power, and thus is not fooled.
Logic Bomb: Cheerilee manages to stop PAINis Cupcake by putting a mirror in front of him and trying to get him to eat himself. The bomb doesn't kill him unlike most examples; it just 'resets' him back to being Soldier.
Loophole Abuse: Trixie pulls this on Flim and Flam to render their victory over the Apples moot. They really want the Zap Apple grove, but since the grove is technically part of the Everfree Forest and not the Acres, it's under custody of Ponyville and the Mayor, and she's perfectly willing to lease it to the Apples. When they think they can at least make money off the farm proper, they are informed in no uncertain terms that nopony will do business with them, all the other Apple families in Equestria will boycott them, and Rainbow Dash is within her rights to deny them the rain they'd need to grow anything in the first place.
Made of Evil: The Smooze: A force of pure darkness that corrupts everything it touches. Just about every boss and plenty of mooks the heroes face have been severely corrupted and mutated by Smooze exposure. It's also what turned Luna into Nightmare Moon.
Made of Iron: Rover survives a backstab from Spy. Even a fully overhealed Heavy can't do that. Admittedly, he's badly hurt afterwards, but that still puts him in a category with Gray Mann's toughest robots.
Mad Oracle: Because they both bear elements of Generosity, when Engineer is turned into a Nightmare, Rarity knows what's happening to him. She's not able to convey the news very coherently, though, as she's seeing what he's gone through.
Masculine Girl, Feminine Boy: Barricade and her husband Dr. TL Care. After meeting the anxious little fellow, Engie finally figured out why Fluttershy is the way she is.
Mama Bear: Barricade. Berry Punch is also willing to jump an indestructible Eldritch Abomination and beat on it to make it let go of her daughter, and attacks the robot manning the Disharmony device without either weapons or plans other than a fierce desire to save her daughter.
Queen Chrysalis, after her Heel-Face Turn, would rather engage a Nightmare on her own than let her children get killed. Having a psychic bond that lets her experience their deaths may be a strong motivator.
First, the fusions. They are simply a portmanteau of the names of the fused.
Barricade of the Pegasus Guard. She is pretty large, surpassing Big Macintosh and Heavy in size. And she is sent to Ponyville to act as defense against the Maskies.
Harbinger of the Earth Pony Guard. True to his name, he delivers news of Celestia's Sanity Slippage to Barricade.
The Nightmares. Their names represent what they are (the Nightmare Dogs, Nightmare Grave), Nightmare Clockwork or what they did before their corruption (Nightmare Doctor, Nightmare Dubstep, and Nightmare Harmonic.)
Trixie: "You literally cannot swing a cat anywhere in Equestria without an apple catching the cat and telling you to stop hurting the poor thing."
Mind Rape: Half of the Elements have suffered from this, having severely traumatizing nightmares that are loosely based on famous Darkfics they have been the antagonists of… Naturally, Cupcakes is the nightmare Pinkie suffers. And Rainbow Dash's is Rainbow Factory. Fluttershy's, though, is something much, much worse.
And, as such, the return of the Engineer as Nightmare Clockwork also invokes this, through his ability to reverse time and reawaken the other Nightmares, even to the extent of affecting the REDs despite their distance.
Nightmare Doctor also likes inflicting this on people. He'll leave you reliving the deaths of every version of yourself from an alternate universe. All the really painful ones. anyway. He also makes people relive the Element's Mind Rape nightmares. Until you tick him off enough.
Nightmare Cuddles uses this too. His repertoire ranges from just making you happy and lazy, to removing your memories and adding subconscious orders, to trapping you in a delusion while a small part of you in unaffected and forced to watch.
Happened to both BLU and RED Engineers, over the course of a very lonely 2000 years on a deserted planet and 1000 years in an Australium mine, respectively.
This is also Slendermane's speciality. He's very good at it.
Mixed Ancestry: Spy. He is part-changeling while in Equestria. Being his other half, this applies to RED Spy as well.
Monster of the Week: Apparently, according to Gray Mann, Slendermane has been doing this formula when attacking Ponyville
Mood Whiplash: Happens often enough that it's practically a trademark. Whenever there's a comedic/slice-of-life/feel-good chapter that doesn't have anything to do with the main story, you can bet money that there will be one of the aforementioned Mind Rape nightmares at the end.
More Dakka: As EngiRarity puts it, if a gun proves a non-viable solution, use more gun. And one of the advantages of having only one opponent (albeit an extremely powerful one) rather than several opponents with advanced anti-sentry tactics, as well as being free of the Administrator's rules, is that she's not restricted to just one sentry. Try twenty.
Mundanemade Awesome: Trixie has a spell that can respawn destroyed hats. The BLUs are very impressed.
Discord had this reaction when he accidentally nearly killed Fluttershy during his Face-Heel Turn. Once he realized what he'd done, he healed her and surrendered.
All the zomponies, with the exception of Grey Hoof, are so horrified by the cost of their freedom that they immediately Heel-Face Turn.
My Greatest Failure: Barricade's is the massacre of her entire platoon by Jeff the Killer, thanks to failure on both her part and the Doctor's. Has resulted in quite a bit of self-loathing, as well as animosity toward the Doctor.
Mythology Gag: AppleDemo's grenade launcher has a six - shot clip. Demoman's only has four, but the gun appears to have six tubes for grenades. Originally, Demoman's grenade launcher was going to have a six - shot clip, but it was cut back to four for balance reasons.
Tropes N - S
New Powers as the Plot Demands: An interesting case. Because Friendship is Magic is still on the air and Team Fortress 2 is still receiving updates, new details from both are integrated into Waking Nightmares as they become apparent. One such example is Gray Mann. When Waking Nightmares started, Gray Mann was not introduced into Team Fortress 2 canon. When he was introduced, he and his robots received their own subplot in Waking Nightmares.
Another well done example of Knight Mysterio's adaptability is Discord… In one scene in Waking Nightmares, he was having a chat with Celestia while he was a statue. Come My Little Pony Friendship Is Magic S 3 E 11 Keep Calm And Flutter On, and Discord is revealed to have been turned back to stone. Because of this, the story is assumed to take place over a year after the end of Season 3.
According to Word of God, unless something major happens, the only thing that will cause the author to make this an Alternate Universe story is if the Cutie Mark Crusaders get their cutie marks in the show.
The plot - heavy Season 4 episodes of My Little Pony may or may not be canon, depending on future developments. One - offs like Daring Don't are canon.
Nigh Invulnerable: Slenderman. During his visit to the RED team's base, The only thing that was capable of damaging him was Medic's desperate use of Sasha to protect Heavy. That act allowed Medic to channel the Elements of Magic and Kindness (through Sasha).
Nightmare Fuel Station Attendant: Pyro. Even her own team fear her (which is, in fact, canonical) and prefer to pay very little attention to what she does to her enemies because they like to sleep at night.
When Medic wants to interrogate someone, he lists off the multitude of creative and horrifying uses of a number of instruments. The order is usually a scalpel and bonesaw, syringes, chemicals, a melon baller, an ice cream scoop, a hot water bottle, a tazer, three bananas, a canister of chili powder, a walnut cracker, and a power drill. He's never gotten past the power drill before a subject starts talking.
No More for Me: Berry Punch, after seeing Soldier and Pinkie bouncing down a road together.
No Place for Me There: Of a sort. Medic says that the BLU team "does not belong (in Equestria), in zis good place...".
No Sell: Slendermane's extension to the human world was this to the RED team, Not so much as flinching no matter what the REDs do to him, even killing the Medic and Demoman while they were Übercharged. And while MONOCULUS! could at least damage him some, it was taken out in ONE HIT!.
Mare-Do-Well's mask shields her from Smooze spit, allowing her to simply shrug it off.
Someone who's insane, like Discord, is immune to Slendermane's powers and illusions, as he's already mad. Slendermane can't do much to someone who's already gone crazy.
Nightmare Clockwork smashes Twilight's shield (that's withstood multiple powerful explosions) with a single blow.
Not Quite Dead: Nightmare Moon. When the Mane 6 purified Luna, they did not kill Nightmare Moon. She still exists in some way, as a separate entity from Luna, but how has yet to be revealed.
And apparently, she refers to Luna as 'Mother'.
Not-So-Harmless Villain: Nightmare Cuddles/Juggernaut. The only one who seems to realize that he is a real threat is Soldier.
Not-So-Imaginary Friend: Balloonicorn is becoming this, as he's able to notice things that Pyro, who was thought to be hallucinating him, doesn't.
All the BLUs have one when they realize Soldier's become Painis Cupcake.
And again when Painis Cupcake somehow manages to find two metal girders.
Masky Unicorn's eyes widen when Medic's ÜberCharge turns Applejack into an alicorn and uses the power of truth to cure Spy and the princess's guards from their corruption. Then it gets a good look at the princesses, and decides to run.
Paint It Black: Doctor Whooves, after becoming a nightmare. His coat turns a dark black.
This seems to be a theme with the nightmares - it happens to Sniper as well.
When Octavia becomes Nightmare Harmonic her coat turns jet black.
Papa Wolf: RED Medic is willing to stand in the way of the Slenderman to keep him from harming his friend. BLU Medic regards Chrysalis's taking of his friends as a clear invitation to kill her in the most horrific way imaginable. And he has a vivid imagination.
Parting Words Regret: Soldier/Solomon fights with his brother, who wanted to enlist, the fight makes his newborn daughters cry and he leaves to run an errand, only for the infamous attack on Pearl Harbor to begin, his family was killed when a shot-down plane crashes into his house.
Perception Filter: Slendermane can cause people to simply not notice him unless he wants to be seen. The Maskies also seem to be able to create these.
Plant Pony: Nightmare Gardener, whom has vine and petaled wings.
Power Copying: Twilight and Trixie are both able to figure out how to cast spells by seeing them performed.
Power Limiter: Twilight had her alicorn powers sealed and princesshood abdicated after a moment of recklessness harmed Fluttershy, thus explaining why she's still a unicorn. She reclaims it during her fight with Nightmare Brutality.
Power Nullifier: Gray Mann's Disharmony Device, capable of negating the fusions.
Power Trio: Barricade, Harbinger, and Shining Armor, whom are the captains of the Pegasus, Earth Pony, and Unicorn Guards respectively. Also, the Doctor, Riversong, and Captain Jack Harkness.
Precision C-strike: Spy gives one to the Administrator when he discovers why the REDs and BLUs are identical.
Nightmare Brutality has one when he starts losing.
Required Secondary Powers: Averted with the equestrians, who don't need a heart transplant to survive the effects of Medic's ubercharge. Their horse hearts are more resilient than a human's.
Reset Button: Destroying a Nightmare tends to heal whatever injuries and even repair collateral damage it caused during its rampage. Averted for the last chapters, due to the fic getting increasingly darker as it goes on.
Retcon: If anything new is added to either the Friendship is Magic or Team Fortress 2 canon, it will be mentioned in Waking Nightmares in some way, shape, or form. See New Powers as the Plot Demands.
Screw the Rules, I'm Doing What's Right: Merasmus tells the Administrator off for making him keep secrets from RED Soldier. So he's going to tell him and the rest of the REDs why the BLUs are more important than either team realizes.
Serious Business: Hats for the BLUs. This naturally goes for the REDs, too. Justified since it's an easy way to distinguish yourself and avoid Cloning Blues.
Set Right What Once Went Wrong: Inverted. When Mitta, Demoman, and Applejack are reliving a traumatic event in Mitta's past, she needs to proceed through the memory as it really happened, letting her sister die to snap the others out of it.
Seven Deadly Sins: Nightmare Cuddles/Juggernaut power is to take one's sins and give them hold over you. He seems to greatly favor Sloth.
Sealed Evil in a Can: Discord. About a year after 'Keep Calm and Flutter On', Discord relapsed and tried to take out Celestia, hurting Fluttershy in the process. Once he realized what he had done, he surrendered and willing went back into his can.
There's a cutie mark-related disease called "Cutie Fracture." It involves a pony being unable to perform their special talent, indicated by their cutie mark, and is indicated by their cutie mark appearing fractured and broken. That may be a reference to Fractured Loyalty. In it, Rainbow Dash's cutie mark appears fractured. KnightMysterio says otherwise, however.
Slendermane is referred to as "the child of Krastos", as in Krastos the Gluemaker, a jokingly proposed archvillain mentioned among fans in the early seasons.
Scout decides to taste the rainbow waterfall outside Dash's house, and his eyes tear up from the extra-spicy flavor. Sniper remarks that Spy was right - rainbows do make him cry!
Several Garry's Mod joke characters make their appearance. Some, such as Painis Cupcake and the Demopan, are played for laughs. Others, very much not.
Christian Brutal Sniper, unlike the original, explains the christian part of his name. He's the embodiment of everything Sniper hates about himself, including the time he was Christian. He stopped when he found out his church had murdered some aboriginals in the area for not being white.
Chrysalis's Battle Cry during her rematch against Nightmare Gardener? "Time to find how many bites it takes to get to the center of a Morrigan pop!"
Lyra once went around in a black hoodie to avoid being noticed.
Cheeriliee's nightmare form is Nightmare Gardener, which is probably a shoutout to Cheerilee's Garden, another grimdark fan fic.
In the chapter "Running of the Leaves", Spy quotes something from Kung Fu Panda.
Spy: "Zere is an old Chinese saying on my world… Yesterday is history. Tomorrow is a mystery. Today is a gift. Zat is why it is called ze present."
Shrinking Violet: TL Care, Fluttershy's father. Except when it comes to the sight of injuries and even he won't be scared of Heavy while tending to him. That, and Harbinger.
Harbinger: A million things terrify him and I'm not one of them.
Sixth Ranger: Derpy, Zecora, and Trixie, whom are the lost Elements of Love, Trust, and Hope respectivly. Cheerilee, Berry Punch, and Mayor Mare also lend their hooves when they can.
Smug Snake: Gray Mann. It's accentuated here because he's Slendermane's flunky.
Gray Mann: "Oh, and because I'm feeling like being an especially large dick today…"
Sociopathic Hero: The BLUs are perfectly aware of the fact that they are dangerous, psychologically damaged killers, and prefer that their pony friends remember this. Medic in particular is a self-admitted sadist who has only his strict adherence to ethics and loyalty to his friends to keep him from performing horrible and fascinating experiments on anything he can find, including the ponies they're supposed to protect. His habit of bringing up his interests in casual conversation comes across very much as reminders to others not to let him slip up.
Sorting Algorithm of Evil: The monsters attacking Ponyville and the protagonists become much more deadly as the story goes on.
Split at Birth: While not exactly at birth, Merasmus reveals that the REDs and BLUs were split from the nine people they originally were thanks to the Administrator. The Mann brothers hired nine mercenaries. The problem was that both of them wanted the nine, so the Administrator performed a ritual (that Merasmus unknowingly provided) involving their blood and Australium to split them into half. As such, the REDs experience a fraction of what the BLUs are experiencing in Equestria.
Spot The Thread: Several of the protagonists start noticing minor inconsistencies when some of their friends are replaced with changeling impostors.
Stealth Hi/Bye: One of Slendermane's ways to mess with someone is to appear, possibly with other, more disturbing illusions, and then vanish as soon as they look away.
Straight Gay: Heavy is comfortable with his orientation, although his crush does not answer his feelings. Which may be for the best.
Summon Bigger Fish: During Pony Versus Machine, RED Scout realizes they only have one option to deal with the Freaks — bring out their own. Painis Cupcake nearly kills Scout before he sets his target on the bigger and tastier opponents.
KnightMysterio claims that whenever he visits this page, he gets a 404 error message. Someone else posted that chapter, and they're hiding it from the author.
Also, the Cheshire Cat sometimes answers questions in Knight's stead…and he doesn't even know it. He doesn't even see him when asked about it. You know something's wrong when everybody can see something "invisible" to the author himself. Also, the Cheshire Cat had hijacked his Tumblr blog during March 17, 2014 for 12 hours.
Title Drop: Chapter 8 "Tick Tock Goes The Clock - Part 2."
Nightmare Doctor: "Tick tock goes the clock, an eternity of screams. Waking nightmares will haunt you all, live out your friends bad dreams."
Also happens in Chapter 12 "Melody of Agony - Part 2".
NightmareDubstep: "Let never ending WAKING NIGHTMARES begin!"
Too Dumb to Live: During Trixie's Canterlot performance, two unnamed fanponies decided to one-up Snips and Snails in the "very bad ideas" department and drag an Ursa MAJOR to the stage for Trixie to defeat, despite her having given up that particular boast just to avoid this scenario.
Took a Level in Badass: Trixie took the opportunity to beef up her magic skills (without evil amulets this time) before returning to Ponyville for the third time so she could live up to her title. Rarity has also seen the need to improve, learning to teleport among other things.
On the show, Mayor Mare is a rather ineffective political figure fond of making speeches and not much else. Here's she's the daughter of a ponified Mike Haggar who enforces Ponyville law with a lead pipe when the police can't do enough.
The Diamond Dogs get the jump on a group of heroes, including Celestia and Luna, and knock them out with gas bombs. They also take steps to neutralize Rarity and her whining. Of course, they have no way of dealing with Celestia, Luna, or even Pyro, but it's a marked improvement.
After being the host of a Nightmare, Cheerilee has her Earth Pony magic significantly enhanced, being capable of making entire trees grow in an instant.
True Beauty Is on the Inside: In her original human form, Pyro is a pudgy mess of scars and burns due to her pyromania and abusive childhood, but Engineer says that she's an angel on the inside - in contrast to his ex-wife Irene, a monstrous harpy of a bitch with the body of a superstar photo model. The scars were omitted when she crossed over into Equestria, though - as a pony, Pyro is very pretty.
Twin Threesome Fantasy: RED Spy suggests the option when he crosses over. Against her better judgment, Zecora actually entertains the possibility. And "Running of the Leaves" suggests she actually did it.
Villainous Rescue: Queen Chrysalis shows up in time to defeat Sergeant Crits and Major Bomber. She's partially HeelFaceTurned at that point, but the truce is still uneasy enough to count as this.
Queen Chrysalis: "This town is under my protection. So swears QUEEN CHRYSALIS, mistress of the Changeling Swarm!"
The Voiceless: Slendermane is this, communicating with his subordinates telepathically.
Villainous BSOD: The zomponies, with the exception of Grey Hoof, after seeing what breaking their curse cost.
Walking Wasteland: The Sunnytown curse turns its victims into zombies. The condition spreads to anyone touching them. The effects are reversed when they stop touching, though.
Weirdness Magnet: Ponyville. Apparently the place was crazy even before Twilight moved in. (The Doctor being a resident may have been an influencing factor.) To whit, the sight of Soldier anatomy-defyingly snaking along the ground making clicking noises and threatening to eat ponies is met with, at most, mild concern and subsequently disregarded once he's returned to normal.
You Need to Get Laid: When Twilight sent Princess Celestia a friendship report summarizing all her previous friendship reports.
Spike: "The Princess's response was to send you some videos from her 'private collection' as well as a sternly worded letter encouraging you to go out and get..."
Your Answer to Everything: Played for laughs with Pyro invoking this on herself in regards to Twilight's long list of chores.
As Twilight and Trixie argued, Pyro stared at the list blankly. And then her horn flashed, a demented grin coming to her face. The list burst into flames, Spike yelping and dropping it as the scroll turned into a pile of cinders.
"Chores done!" Pyro chirped.
Trixie fell over laughing, Spike joining her moments later. Twilight stared, aghast. "Pyro!"
"Oh, Trixie does like you indeed, firebug!" Trixie said, struggling to catch her breath between fits of laughter.
Pyro just grinned. "I find that, if you think about it, there are few problems that cannot be solved in some fashion with copious amounts of fire."
Zerg Rush: In Pony vs. Machine part 2, when Gray Mann attacks Ponyville with a robot army well over 1000 strong.
Zompony Apocalypse:: Medic claims to have created a viral agent capable of creating one. However, he was forced to discard it due to being set on fire by Pyro, and the fact that while creating a zombie plague is easy, controlling it is not.
Celestia on the other hoof creates a localized one in Sunnytown after seeing the horrors within.
Grey Hoof manages to create a localized one in Ponyville to free him from Celestia's curse. It fortunately doesn't last.