Sonic's Equestria Girls

Dr. Eggman has been up to his old tricks again. This time, he built a whole city on an uninhabited island and called it "Eggmanland", the capital of the Eggman Empire. The whole city was meant to serve as a monument to the scientific genius that madman possesses and wants to use for world conquest. He even went as far as to build a giant statue of himself at the city's main gate. His robot armies guard the city from the doctor's arch-nemesis: a certain super-speedy blue hedgehog.

Currently, the mad mustached doctor was working on his latest scientific endeavor: to create a machine that would amplify the power of a Chaos Emerald and turn that energy into liquid fuel. Eggman stood looking over his machine with great pride.

The machine was a large and cylindrical structure that towered over the doctor. It had a large basin at the base of it that was meant to hold Chaos Emeralds. The Energy Liquifier, as Eggman called it, has internal machinations that would liquify the energy of the Emeralds.

"Ha! Once I turn a Chaos Emerald's energy into liquid fuel, I'll be able to create more of it to fuel my robots. I just need to make sure that hyperactive nuisance doesn't interrupt my plans this time.", the doctor said to himself.

At that moment, Orbot and Cubot entered the room. The doctor didn't know why he put up with these pathetic chrome-dome clods for as long as he has.

"Doctor, your latest creation looks fascinating!", Orbot said.

"Yeah! A real achievement for the great Ivo Robotnik!", Cubot complimented, calling the doctor by his real name.

"Of course it's a real achievement! This is a machine I built, after all.", the doctor responded. "Did you bring the Emerald?".

Orbot pulled out the Blue Chaos Emerald and handed it to Dr. Robotnik. "Right here, sir!".

Eggman took the Emerald and put it in his machine's Emerald container. The machine started to power up with a mechanical humming sound. The screen in front of him indicated that the machine was working! It was going to liquify the Emerald's infinite energy.

"Eureka! I did it! With this machine, I won't even need the other Emeralds. One will be all I need. With my Liquifier, I'll finally be able to realize my dream of building... the Eggman Empire!", the egg-shaped doctor exclaimed to his two robotic lackeys. Both of them started clapping.

"Hail the Eggman Empire, sir!", Cubot cheered.

"You've always got the master plan, boss!", Orbot cheered with more enthusiasm.

"Thank you! Thank you! You're all so kind. I just need to make sure that blasted blue rodent doesn't get his grubby little gloved hands on my-", Eggman said before being cut off by the sound of an explosion.

From where Dr. Eggman was looking, an explosion happened somewhere outside Eggmanland's main gate. Emerging from the pillar of smoke forming, he could see a familiar biplane flown by an equally familiar two-tailed fox. The doctor ground his teeth in anger.

"Blast! It's that horribly hyperactive hedgehog and his furry fandom-loving friends! Why are they always showing up to ruin a bad thing?! Even before one starts?!", Eggman yelled.

Dr. Eggman went over to the tower's control panel and held a small microphone to his mouth. "Attention! Soldiers of the Eggman Empire! This is a message from your commander: all available troops stop that cursed hedgehog!!", he ordered.

Eggman turned to see a squad of Egg Gunners enter the room where he himself was. Egg Gunners formed the backbone of his empire's army. The maintenance work at his various bases of operation were handled by his Egg Pawns, largely due to the fact that Egg Gunners had no fingers.

"I want you all to guard this room. If you see the hedgehog, kill on sight!", he ordered his troops. Eggman then turned to leave the room.

"Where are you going, doctor?!", Cubot asked. Dr. Eggman turned to his minion and smiled.

"I'm going to greet our ghastly guests.", the doctor replied icily.

• + +

With Sonic and his Friends

Sonic the Hedgehog. Everyone on the planet knows who he is. The hero who rolls around at the speed of sounds who defends justice and freedom for all. He makes it his duty to defend the world from threats like Dr. Eggman and his mech forces. Over his life, he's had to fight Eggman, the Zeti, some god of chaos born from the Master Emerald, and so on. Sonic's arch-enemy Dr. Eggman was who occupied Sonic's thoughts the most.

Eggman lost every battle they fought. Still, the bad doctor was persistent, Sonic had to give him that. Every time he beat the doctor, he would always come back with another big scheme to take over the world. And his robot armies would spread out to cause havoc and destruction at some place he wasn't present. But thanks to his friends, they were more than capable of stopping Eggman.

Sonic was running down one of the streets in this crazy metropolis of madness when he found himself confronting a large squad of Egg Gunners. The robots, being ordered to kill the hedgehog, all pointed their arm cannons at him. But before they could open fire, a projectile blew them all up. Sonic looked up see Tails giving him a thumbs-up from the Tornado.

"Alright! Thanks for the save, buddy!", Sonic shouted out to his best bro. A crashing sound came from his right.

Sonic ducked just in time to see a bashed robot flying over his head. A red echidna with boxing gloves and spiked fists appeared before Sonic with a serious expression. It was Knuckles the Echidna.

"Whoa, Knuckles! You hit a home run with that punch, buddy!", Sonic quipped to his other buddy. Knuckles just gave a smile.

"I was trying to see how far I could punch it," Knuckles responded.

"By the way, have you seen the girls?" Sonic asked.

As if one cue, two females landed in front of the hedgehog and echidna. One was a pink hedgehog wearing a red dress and holding a giant hammer. The other was a white bat wearing a one-piece dark purple suit with a pink heart-shaped breastplate accompanied with white gloves and boots. Yep, it was Amy Rose and Rouge the Bat.

"Sonic! Glad to see you're still in one piece!", Amy said after running up to Sonic and hugging him. Sonic returned the hug and gently let her go.

"Glad to see you're still okay, too! Any problems on your end?" Sonic asked the pair of females.

"An Egg Gunner almost blasted me to kingdom come! But thankfully, my big brave red knucklehead was able to take it out and save me.", Rouge said winking at Knuckles. The red echidna scoffed and looked away.

"That was just me thanking you for not trying to steal the Master Emerald for an entire week! Nothing more!", Knuckles said with a blush.

"You guys can flirt later. Right now, we need to take care of Eggman!", Sonic reminded his team.

Taking off at max speed, Sonic whizzed between the buildings until he found his target: Eggman's central command tower in the center of the city. After taking care of the Egg Gunners and Badniks in his way, he made it to the base of the tower where two large doors loomed over him. Sonic looked up to see a security camera fixed on him.

"Hey, Egghead!", Sonic called out. "Why don't you stop hiding and actually get a workout? Working in a lab all day can't be good for the cardio, dude.".

In response to his taunts, the doors opened to reveal... darkness. There was no light to be seen within the whole complex. Then, a flash of light appeared before the hedgehog. It was Dr. Eggman sitting in his Egg-Mobile. He alone was illuminated while the rest of his surroundings were still dark. The doctor grinned menacingly at his quilled opponent.

"Hello, you bothersome busybody!" the doctor greeted.

"Uh-oh. Whenever he gets like this, he has something pretty bad up his sleeve. I can't afford to be reckless here," Sonic thought to himself.

"So, I see you've built your own city for yourself, Egghead! It really suits you. Why don't you just rule over this island and leave the rest of the world alone? That sound fair?" Sonic said. Eggman just kept grinning.

"Because, my speedy adversary, I simply wish to have my genius recognized by the entire world. And what better way to do that than by conquering the world? My superior intellect is what gives me the right to rule. But you keep getting in my way. I know you've won every bout we've had over the years. But since this is my most ambitious project yet, I can't have you getting in my way this time!!", the doctor shouted before turning on all the lights.

The lights revealed a giant mech suit in the shape of a giant gorilla. Eggman's Egg-Mobile formed the top of its head. Sonic ran away from the door as the robot stepped outside and closed the door behind it. Suddenly, a force field covered the entirety of the tower.

The robot stood to it's full height and stood glaring at Sonic with red glowing eyes. Everything about this robot screamed "battle-ready". It was dark gray in color with thick armor plating. It's arms and legs were thick and powerful. The robot punched its fist into its hand and looked ready to fight.

"So, warthog, how do you like my newest combat robot, Egg-Kong?" Robotnik asked his furry foe from the speakers in the robot's mouth.

"It may be pretty big. But I doubt it can go as fast as me.", Sonic taunted before running around the robot's feet in a circle.

In a flash of movement, the robot kicked Sonic into one of the buildings. The hedgehog went crashing into the wall and went completely through four buildings before stopping at the fifth one.

"How's that for fast, you wretched rodent?!" Eggman called out. His question was answered by the guns of the Tornado firing at Egg-Kong.

"You can't stop us, Eggman!" Tails called out.

"Yeah! We won't let you take over the world!" Amy chimed in.

"It's our job to protect the innocent from people like you!" Knuckles shouted.

They all tried their best to attack Egg-Kong. But something was wrong. Its movements were too fast for a robot of that size to be capable of. Eggman easily fended off everyone's attacks. They were being pushed back farther and farther from the tower.

"It's no use!", the doctor called out. "Egg-Kong is the ultimate combat robot because he's got the ultimate power supply: liquid Chaos energy!".

Tails was shocked to say the least. "Liquid Chaos energy? How did he get that? He must have a Chaos Emerald here," he thought to himself.

Tails looked at the protected tower and came to a realization. "It's in there! The Chaos Emerald must be somewhere in that tower!"

He angled the plane to fly up over to the tower. Sure enough, Eggman saw what the fox was doing.

"Not this time, you flying fleabag!", he cried before having Egg-Kong jump into the air to grab the plane.

He managed to grab one of the wings of the Tornado and rip if off completely. Tails had to eject from the plane and use his tails to fly over to the tower. He landed on the force field and tried to find a weakness. He looked and saw that one antenna was putting out the force field. Tails went over to the antenna and cut some of the wires connecting the generator to the output point. In a few seconds, the force field was down.

"Alright! Good one, Tails!", Knuckles shouted before running past Egg-Kong's legs. He ran right up to the doors and used his super strength to break them down.

Eggman looked down to seen his enemies running inside. "No! No! I hate you!! I hate all of you!!", he cried out before abandoning Egg-Kong to guard the Emerald himself. His Egg-Mobile Went inside a large window on the top floor where his machine was located.

Inside the Command Tower

Eggman ran into the room panting and sweating. Orbot and Cubot were surprised to see the doctor like this.

"Boss, what happened? You look like you just tried to outrun Sonic!", Orbot said.

"Never mind that!", the doctor shouted before going to the control panel and picked up the same small microphone he used earlier. "Attention! The enemy is now inside the tower! Find them and kill them! Kill them all!".

Cubot nervously spoke up. "Doctor, are you okay?".

Eggman turned to face Cubot. Although the doctor's eyes were hidden behind those iconic glasses of his, that look sent shivers down Cubot's circuits.

"Of course I'm not! These little punks have been bashing my plans of building the Eggman Empire for too long! And now, they're here to take the one Chaos Emerald I have in my possession! I'll rip off my own mustache before I let them all stop me!", the doctor raged.

Suddenly, the doors burst open to reveal Knuckles, Rouge, Amy, and Tails standing in the doorway. They all looked at the doctor with confidence in their eyes. Knuckles walked up and cracked his knuckles.

"Okay, doc. Hand over your Emerald before we have to start calling you 'Scrambled Eggman'.", he threatened.

Eggman just stood there without responding. How was this possible? He was a scientific genius capable of the most incredible feats of engineering ever seen, and now a pathetic echidna was making demands of him? And he was constantly defeated by a blue hedgehog? How silly is that?! Eggman wouldn't stand for this any longer.

"Well, sorry I missed the party!", a familiar voice called out from behind all of them.

Everyone turned to see Sonic standing in the doorway. He was quite bruised, but otherwise okay. He looked at Eggman with that insufferable smirk on his lips.

"What's it going to be, Egghead? Are you going to give us that Emerald or are we going to have to trash your house looking for it?", the hedgehog asked the villain snidely.

"Go away. Disappear," he replied in a whisper.

"What?" Sonic asked.

"Go away. I hate you. I hate you! I HATE YOU!!", Eggman shouted, making all of his enemies take a step back. Sonic had seen Eggman rage before, but never like this.

"I hate you all!!", he continued. "Every time! Every time you stop me! Every time, you ruin my dreams! I will never stop!! No matter what I have to do! No matter what I have to sacrifice!"

Eggman slammed his fist into his new machine, causing it to malfunction. A bright light started pouring out of the machine. The Chaos Emerald! It was overloading the machine and having a reaction to the machine malfunctioning. As everyone in the room looked on, the light grew and grew until everyone in the room was enveloped in the bright light.

Dr. Eggman could only utter a few words. "This is... Chaos Control".