This story is a sequel to Sonic Generations: Friendship is Timeless

Everything seemed to be going so well since the fall of The Last Ancient. Twilight and Starlight's time in Sunset Shimmer's world had granted them what they thought would be the final piece of the puzzle that they needed to reach the world that Equestria had almost joined with due to the disruption of time and space. And then Princess Celestia and Princess Luna announced that they would be stepping down.

In her efforts to restore the Warp Ring in the hopes of seeing Sonic and his friends one last time, Twilight inadvertently provided an easy back door to Equestria, allowing Dr. Eggman's chief enforcer to reach it and eliminate any threats the land may pose to the Eggman Empire. As part of his revenge for foiling his plans in the past, Eggman gave strict orders to drag Twilight and her friends to his world so they might see his glorious reign before he ends them for good. Luck proved to be in their favor, however, as the arrival of two friends who haven't been seen in a long time threw a wrench in the works and allowed them to be found by a band of freedom fighters known as the Resistance, led by more of their old friends from that world.

Now part of the uprising to reclaim the world, the Equestrians are hoping to help their allies, new and old, win their war, but time is not on their side. It is the darkest of times for the world, but their efforts may prove to be for naught against their seemingly unstoppable enemy.

Will their friendship and the smallest amount of courage be enough to turn the tides of war?

Based on the movie: Sonic the Hedgehog, but with some changes.

After fleeing to planet Earth, Sonic the Hedgehog has been secretly living in Canterlot City as his new home for the past decade along with his incredible power of super speed. Things went well for him, until he accidentally knocks out the power grid, getting the attention of the military organization, G.U.N., along with the evil genius, Dr. Robotnik.

Meanwhile, the Equestria Girls was preparing for their upcoming graduation, leaving Sunset Shimmer unsure of her future. When the power grid near their school was knocked down, CHS was in suspicion by G.U.N., sending in a special agent to investigate as a result.

When the two groups meet up due to circumstances, Sonic and The Equestria Girls must team up to retrieve Sonic's rings and stop Robotnik from using Sonic's power for world domination while fleeing from the government.

Special thanks to RS-Belle14 (Chapters Prologue, 1-2) and MLPSolarDash1907 for proofreading and knigsonic (Chapters Prologue & 1) as my editor.

Sonic the Hedgehog is owned by Paramount Pictures and Sega.

My Little Pony: Equestria Girls is owned by Hasbro.

Cover art designed by me.

FEATURED: 10/10/20 - Awesome! Thank you all so much!

This story now has TV Tropes page!

This story is a sequel to Equestria Girls 2: Rainbow Rocks

Sunset joins the Chaos Rainbooms after she helped her friends defeat the sirens after her long way of being a bully at CHS, everyone finally trusts Sunset Shimmer and not only that, but her and Shadow are true friends again. After all of that, today is the competition against CHS’s rival school, Crystal Prep Academy, a school that beat CHS multiple times in a competition called the Friendship Games.

The Chaos Rainbooms thinks it’s time for a change and that they aren’t going to lose to Crystal Prep and were determined/ready to win, but to their shock, they saw Twilight and two of her friends they don’t know about, but Sunset, Rainbow, Fluttershy, Rarity, Pinkie, and Applejack must not “pony up” or else that would be considered cheating according to Vice Principal Luna.

When their world is being threatend by an evil Syndicate, it's up to Twilight, Rainbow, and Spike to join forces with heroes from other worlds, to save the day.

Long ago in a distant land, Ivo Robotnik, the egg-shaped master of science, unleashed an unspeakable evil. But a brave blue hedgehog wielding supersonic speed stepped forth to oppose him time and time again. Before their latest confrontation reached its climax, the villain tore open a portal through time and space, and flung him into another world where magic and fantasy are everyday reality. Now the hero seeks to return to his world, and stop the mad doctor from conquering this one too. Along the way he'll meet new friends, new enemies, and just maybe something a little more. All while the fate of two worlds hangs in the balance.

Hang on to your seats boys and girls, cause we're breaking down the walls between dimensions.

Now on TV Tropes.
Cover art by BroDogz.
Sonic the Hedgehog universe, set directly after Sonic Generations.
MLP universe, set just before the end of Season 2.

Edited by, Jet Storm, Typoglyphic, Bok, and RobKuro85.

After some inspiration from from my good pal Gunflame, I'm throwing my hat into the ring for a good Sonic/MLP crossover. And I aim to give it the much needed improvement in quality that's so desperately needed with this particular crossover genre. I'll strive to make this one of the premier Sonic/MLP crossover stories on the web.

Thank you and enjoy.

Featured: 3/3/22, 6/18/23, 6/26/23, 1/1/24, 1/27/24, 3/14/2024

Several months have passed since the defeat of the evil Metarex and Sonic the Hedgehog along with his friends have been on many new recent adventures in saving Planet Mobius from Doctor Eggman and his robotic minions from getting their hands on the powerful 7 Chaos Emeralds. Along the way Sonic gained many new friends, friendly rivals, and new enemies during the recent months. However, Sonic is about to get into a fight that he wasn't excepting when he found the last Chaos Emerald until without warning the emeralds induce Chaos Control sending the blue hero into the crossfire of the Legion of Doom's attack on Canterlot during Twilight's coronation to becoming leader of Eques.

Now Sonic must defeat the Legion of Doom and return home to help his friends while Eggman is up to his usual plans. But this fight will unlock and awaken a new powerful form for Sonic out of the Chaos Emerald's power. Can Sonic save Eques from destruction? Find out!

Sonic, with the power of the Chaos Emeralds, is accidentally sent to Equestria. Now he has to try and find a way back before anything happens to his home or his friends.

While foiling one of Robotnik (Eggman's) plans of world conquests, Sonic is unknowingly sent to Equestria and meets its heroes But he doesn't come alone; something else has followed him to the land of ponies. A power that could destroy the very land beneath his feet.

Dr. Eggman has arrived in Equestria and has taken over Canterlot. Ponies are being Roboticized and hope is dimming. The Mane Six team up with Sonic in this fun filled adventure to stop the mad doctor from claiming the power of the Elements of Harmony and conquering all of space and time.

(Disclaimer: I do not own any of the images used in this story. All images belong to their respective artists)

After a freak accident happened while saving their worlds, a blue hedgehog and a cyan, rainbow colored mane pegasus meet and find themselves in a new dimension called Earth! In order to survive in this world, they will have to work together to find their missing friends, as well as the Chaos Emeralds and the Elements of Harmony! And with the help of two human siblings Christopher and Katherine Thorndyke, AKA the Thorndyke siblings, they are in for one hell of a ride! However, troublemakers from their worlds such as the evil genius Dr. Eggman and the mad scientist pony Steam, are also here to cause trouble for our heroes! Who will come out on top with the Emeralds and the Elements? Find out in this exciting adventure in Sonic X: Friendship is Universal!

A/N: The MLP side is an adaptation to Super Writer's fan game Curse of The Lost Kingdom. All credit for the original characters and elements from the game goes to him.