Meanwhile, back at Ponyville, Rainbow Dash was heading towards Sugar Cube Corner to see if Pinkie Pie was here, when she entered, she was wondering why Pinkie didn't show up for the prank.
"Pinkie, What's the deal?" she asked as she was walking over to the stairs to Pinkie's room. "I told you I needed your help switching out all the filly guide cookies for the joke cookies. But when you didn't show, I had to do all by myself!"
But when Rainbow Dash entered Pinkie's room, she saw her in her bed, and when Pinkie turned around, she was sick, she still had the rainbow muzzle in her mouth, and even weird, her colors were dulled, instead of Pink, she was grey, and her mane and tail were still poofy though.
When Rainbow Dash saw her like this, she got closer and chuckled a little. "Wow. Your face is still pretty rainbowfied." she said.
"Yeah." answered Pinkie pie while she coughs. "I haven't been felling well, and these joke cookies are the only thing that makes me feel better."
Pinkie was gonna grab another cookie, but when she was gonna do it, she looked at the box and realized that it was empty.
Pinkie rushed over to Rainbow Dash angrilly. "YOU DON'T HAVE ANYMORE, DO YOU?"
"Uh, no. I just told you, I used them all for the prank." responded Rainbow Dash.
"Oh yeah, I forgot." said Pinkie as she lays down on her bed.
Rainbow went to the room's staircase as she giggled a bit for her prank. "Pretty soon the CMC's will start selling them to everypony in town." she said. "Ponies will open their boxes and start eating, then all of their teeth will turn rainbow colored, and they'll know it was me! It's gonna be awesome!" Later she went to Pinkie's bed and grab her sheeds so Pinkie won't miss anything from the prank. "Come on! You don't wanna miss it!"
But Pinkie knew Rainbow Dash as messing up as she refuses to get up from bed, knowing what Rainbow Dash was gonna do.
"Actually..." she said as she coughed again. "I don't think I can even stand up..." later she swinged over to Rainbow Dash. "UNLESS YOU GOT MORE COOKIES!!!" She said in a raspy voice.
Rainbow Dash backed up in shock of Pinkie's behavior, knowing that it wasn't normal. "AHH! On second though, maybe you better stay here and rest."
Pinkie noods her head and sighs as she turns around again. "Yeah. You're right. Sorry I missed out. I'm sure it's gonna be hilarious."
Rainbow Dash was thinking about Pinkie's behavior, wondering if she was really sick or she's just faking it, but she leaved Sugar Cube Corner and get prepared for the prank.
Meanwhile at Danville, at Doofenshmirtz Evil Inc. Doofenshmirtz was going to his lab to see if Agent P was still on his trap. He opened the door and turned off the disco ball's switchlight. "Ok, the party's over Perry the Platy-"
But when he looked at the disco ball, he looked that it was empty, meaning that Agent P escaped his trap. Agent P swinged over to Doofenshmirtz and pinned him on the floor, causing Doofenshmirtz to exclaim pain and surpise. "Ow! Oh! Aw, man! Ah!" said in pain.
By the time Agent P pinned him on the floor, Doofenshmirtz looked at Agent P with a suggest. "Ah, not to be high-maintenace or anything, but do you mind if we can fight a little bit quieter? Uh, the girls are having a movie night and I don't wanna dis-"
Agent P letted go of Doofenshmirtz and walked over to the couch, causing Doofenshmirtz confused. "Hey! I didn't mean you to walk away! We can still continue to fight! It's just that-"
Agent P came back with a pille of pillows and gave two to Doofenshmirtz and he whacked one at his face, causing Doofenshmirtz smiling about Agent P's meaning of. "A pillow fight! Perfect! It's violent and quiet! It is on!" he said while he got prepared to attack.
They started whacking each other, Agent P only succesed on whacking Doofenshmirtz, while Doofenshmirtz only fails duo to Agent P was always dodging the attacks Doofenshmirtz was gonna give to him.
"Aw, come on! Do I get to land one or not?" Doofenshmirtz asked by later, Agent P whacking his face three times. "I take that as a no?" he asked again.
Agent P later he flung the pillow into the air and kick it to Doofenshmirtz's face, causing Doofenshmirtz to fly backwards and hit the wall, almost breaking his TV.
Doofenshmirtz later, he went to the couch and got up, splating some feathers in his mouth. "Talk about 'down in the mouth'. Get it?" he joked. "It's uh...ah whatever. Meet my friends," he said while grabing his couch's cushions. "Poly and Ester!"
He threw 'Poly' at Agent P, but Agent P ultimately dodged it again. Though, it did hit something. 'Poly' slammed the fire button of the Repulse-Inator and it was having a power surge and it was overheating to much. "Uh, oh, I think it's overheating." said Doofenshmirtz as he notices the sparks of electricity on the inator.
The inator powered up itself and fired it's direct target, Doofenshmirtz went to see if the beam was gonna zap his brother, Mayor Roger Doofenshmirtz, who was still giving his speech in front of the new Danville water tower, however, a portal opened out of knowhere, causing the beam to be send to another universe.
Meanwhile, back at Ponyville, at Sweet Apple Acres, Applejack, Rarity and the CMC's were getting ready for the filly guide sells on Ponyville as they were packing up the boxes of joke cookies, thinking that they were the filly guide cookies to the carriage.
Rainbow Dash arrived as she saw everything ready. "Alright, who's ready to sell some cookies?!" she asked in excitement.
"Me!" cried the CMC's delightly.
But while that, the same portal opened and striked Doofenshmirtz's Repulse-inator's beam, it zapped the boxes of joke cookies, some pieces of static and sparks were surrounding the joke cookies, causing a different effect on them, especially the rainbow muzzle inside the cookies. But none of the mares or filies noticed the stadic surrounding the boxes.
Applejack and Rarity got closer and Applejack started conforming Rainbow Dash about her pranking. "Look here, Rainbow Dash, I know you've promised Scootaloo you'd help out, but I don't want none of your pranks ruinin' these filies night."
"Look, I'll be with you the whole night, so you can totally keep an eye on me." said Rainbow Dash.
"Come on Applejack! Let's get started!" said Apple Bloom.
"Yeah! We got a lot of ground to cover!" continued Scootaloo.
"We wanna hit every house in Ponyville!" ended Sweetie Belle.
The CMC's went running with the carriage of joke cookies to do the sells on Ponyville, but they didn't notice the stadic fo Doofenshmirtz's Repulse-inator's beam surrounding the boxes, neither do the CMC's older sisters.
Rainbow Dash excited about everypony getting their mouth rainbowfied. "Come on! You heard her! EVERY house in Ponyville! heh, heh, heh!" she said as went off with a smug on her face.
Applejack and Rarity were a bit worried about Rainbow Dash's pranking, so they agreed on keeping an eye on her and leaved to help the CMC's cookies sells.
Meanwhile, back at Danville, at Doofenshmirtz Evil Inc. Doofenshmirtz was watching from the balcony, seeing how that portal opened and made the beam went into it. Suddenly, he notices the inator rumbling.
"Run! IT'S GONNA BLOW!!!" He yelled warning his nemesis about the explotion that's gonna happen. Agent P so did, he ran away as fast as he could to avoid the explotion. But only to get trapped under a see-through box with an anvil and a box of bowling balls covering it.
"Ha! Trapped ya'! You'll fall for everything Perry the platypus! 'It's gonna blow!'" he mocked and scoffed as he gestered to the machine with static around it. "As if, as if I would know ahead of time when something's going to-"
But before he could even continue, the inator overheated, causing a minor explotion on the balcony. Doofenshmirtz just stood there awkwardly with his face burned and his lab coat ruined. "That was purely coincidental!" he said.
Later, he turned around to the ledge of the balcony to see how the beam went into that portal. "But I don't know where did the beam head to, I-I saw that portal opened out of knowhere. I swear I did not opened that portal, It opened by itself and send the beam to another universe."
But then he remembered anything of the inator's effects that can hit anyone or anything and he smiled. "But whoever or whatever got hit by the beam, is gonna be repulsive now!" He said.
To be continued.