As the blood red moon falls over Equestria, a rather strange looking robot looks down upon the town known as Ponyville in his air battleship.
"Those foolish organics, MrCreepypasta, CreepsMcpasta, and CreepypastaJr. Never send organics to do a robot's job, as in me, Litter Bot!" He said to himself. "Now, to perform the ritual and to make sure your other version doesn't try to interfere..." He then looked to Slendermane and the Creepypasta Ponies. "You ponies will be my bargaining chip! If Slenderman and his proxies interfere, you certainly will die!"
"You smug metallic bastard! I'm gonna tear you apart when I get out of here!" Factory Dash threatened.
"Useless, worthless threats, now...for the ritual..."
Meanwhile in Ponyville, everypony's celebrating Nightmare Night!
"Okay Spike, I'll trade you all of my chocolate marshmallows and this lemon tart for 3 of your kisses." offered Sweetie Belle, who was wearing a flamingo costume.
"Deal! Wait, I don't have any...uh..." Spike in his Dark Pit costume then began backing away as Sweetie Belle slowly stepped towards him. "Sweetie Belle...c-come on, back off!"
That's when Sweetie Belle started chasing him! "Gimme those sugar lips!" She cried through the lively night! Everyone in Ponyville were trick-or-treating and having fun at Nightmare Night parties, sure a few kids & teens were sent home for vandalizing, but hey...all in good fun right?
"Yee-haw! This Nightmare Night is sure going well!" Said Applejack in a Supermare costume.
"Eeyup!" "Mhmm!" Big Mac and Marble Pie agreed as they walked past her, Big Mac in a princess costume, and Marble in a prince costume, and when I say Prince, I mean the singer.
"Aww...they're such a cute couple." Said Pinkie in a Monokuma costume. "I ship 'em so hard."
"If only Fluttershy was here, poor darling would've loved this many happy faces." Said Rarity, dressed as Princess Tiana.
"Yeah, but on the bright side, I gave her full access to the castle library's manga section." Twilight said in her Harry Potter costume.
"Good, I'd hate for her to miss the Nightmare Night After Party at the castle." Said Rainbow Dash in her Ryu Hayabusa costume.
Meanwhile, back at the air battleship, Litter Bot stood within a red chalk circle.
"Come monsters worse, most horrible, more horrible than fictional monsters them self, come to me and obey only me!"
Then circle began flashing a black light, the heads and appendages of creatures began arising from the circle, Litter Bot then backed away as they emerged.
"Yes...the victory us Youtube Creepypasta Readers were waiting for shall come!"
"What the? This isn't my Toy Shop." Said a pale skinned man with red hair.
"Where the fuck am I now? I was about to kill some crazy guy who was looking for his daughter in some zombie outbreak!" Said a young man in long black hair and white hoodie.
"What the? Hey! Me and my friends here were just about to put a kid into a permanent coma!" Said a Golden Bear animatronic in a Purple Top Hat and bowtie.
"This place...it's familiar!" Said the rather slender creature in the middle, who seemed to have gained the attention of everyone else!
"Crap! It's Slenderman!" Shouted the Brunette man with a black jacket.
"What the? Liu?"
"Jeff? Bro! I've been looking for you!" Said Homocidal Liu.
"What the? Liu? I thought I killed you."
"Well you fucking thought wrong! And now I wanna show you what it's like to be stabbed dead!"
"(Hmm...Brother vs. Brother huh? Guess I get to let someone else exact my revenge on Jeff.)" Thought Jane the Killer.
"Hey guys, can you not have your family feud and help us surround Slendy?" Asked Laughing Jack.
"Tch, fine! But after killing Slenderman, you're next!" Said Liu.
"Ha, like you'll get even the tip of your knife on me after this." Jeff mocked.
Everyone surrounded Slenderman!
"Uhcaaaaa..." Growled Uhcakip.
"Hypno..." Hypno growled.
In between Entity 303 and Null, stood Herobrine.
"Master, don't worry, we'll protect you!" Said Ticci Toby.
"Hey fag, don't steal my line!" Said Masky.
"Guys, save the fighting for these chumps!" Said Hoody.
"ENOUGH!!!" Shouted Litter Bot.
The monsters all turned their attention to Litter Bot.
"Crap! Did we just get summoned again?" Complained Jeff.
"Correct, Mr.Woods! You will all listen to me, for I..." Then he pulled a lever, making a platform rise from the floor. "...have captured the Creepypastas of this universe!"
"Whoa! Did he just capture fucking Slendermane?" Said Liu in shock. "Well, if this guy is good enough to capture a Slender, then sign me-up!"
"Me too!" Said Springtrap.
"Ooh, I feel like joining in as well! What do you say Laughing Jack-in-a-box?" Asked Jason the Toymaker.
"What the? How did you know I was a Jack-in-a-box?"
Jason only flashed him a smile.
"By God! Papa! I've always wondered where I came from! This is the best Halloween ever!" Sang Laughing Jack.
"Slenderman, you wanna save this version of you don't you?"
"Let them go!"
"Okay, but you need to serve me, as my proxy!"
"Master, don't listen to him!" Said Masky.
"We can take these g..." Then Hoodie was silenced.
"No...we need to do this!"
"Master..." Said Ticci Toby.
"My proxies, trust me..."
"You know we never distrusted you...so I'm in! Right guys?" Asked Hoodie.
Masky and Ticci Toby then nodded.
"Good! Now let's begin! You will all attack the citizens in the little village over there!"
"You mean the one with the giant crystal tree looking castle?" Asked Screamy, the red ghost from Pacman.exe.
"Yes! You are to kill them all! It's part of a plan, you all will love." Said Litter Bot.
Then the monsters all exited the aircraft and charged towards Ponyville.
"All of those poor unsuspecting ponies, having fun on Halloween to die, as sacrifices for...him!" He said as he looked at Tatzljack.