The humane 6 have taken to using the term "pony up" when they transform to have their pony ears and manes (and wings). So what happens when it the transformation doesn't stop at ears and manes?
When Dash and Twilight reset time, the main 6 must work out why the Equestria they have found themselves in, is far different than the one they remember.
During her brother's surprise wedding, Twilight meets a demon from her past that overturns the lives of everypony around her, and threatens to tear apart their friendships. Meanwhile, Twilight's enemies, old and new, close in as her spirit fails.
Sweetie Belle's secret job as the radio host, Lady Luxury, causes her to learn of Spike's crush on her. Sweetie does he best to offer advice while keeping her identity a secret.
Apple Bloom wants to see her parents, the Cutie Mark Crusaders want their cutie marks, so they do the the only logical thing and try to raise the dead.
When Twilight runs out of royal duties and busy work, she decides on another way to spend her time while her friends are away. Using the mirror portal, she finds her Canterlot High friends. However, is there something wrong with Sunset Shimmer?
A shadow descends upon Canterlot. Celestia announces the impending return of Nightmare Moon. And Twilight, Tempest, and their fellow students find there's more to being Equestria's chosen defenders than they bargained for...
Returning from hiding after Nightmare Moon's defeat, Cadance and Shining Armor have some wonderful news for Twilight. Then they encounter Tempest Shadow. And suddenly a simple question isn't quite so simple anymore...
With the Princesses missing, Ponyville overrun, and Discord nowhere to be found, Twilight takes charge in Canterlot and Sunset teams up with the Ponyville gang, looking for a way to save Equestria, if they can only find it in time...
Needing a break, Twilight and her AP team visit a quiet little town... named Ponyville. And it's such a peaceful, pleasant place, it's a wonder they've never been there before...
Twilight and her AP team face Discord. And he may have met his match. Yet the Lord of Chaos has an ace to play: he knows Twilight's new friends better than they realize. And how to get rid of them... by showing her it's for the best, really...
Thanks to Discord, Twilight has some new friends. Actually, they're her old friends. Now she wants her old friends back... that is, her new friends. It's complicated. But even Discord doesn't realize how far he's gone this time...
Earth-pony Twilight Sparkle and her friend Rainbow Dash visit a realm of forest and magic. And find that all is not quite right, in the place where the unicorns dwell...
Earth-pony Twilight and her friends discover a world of fire, which may offer clues to the past of all the worlds. That is, if they can manage to escape its dangerously powerful inhabitants...
Earth-pony Twilight Sparkle has always been a little "out there". But while testing her latest crazy idea, she finds that there are places even farther than that...
When Equestrian help is required in the world of Canterlot High, but Princess Twilight isn't responding to the journal, five girls cross over to find her. (All epilogues now complete!)
Twilight Sparkle has been on a ROLL solving friendship problems lately, but there are some lines even she won't cross for a friend. At least, that WAS the case, until she became inspired by Rainbow Dash's antics; nice knowing you, Twilight!
A Brony goes to Brony-con, and gets sent to his favorite show as Pinkamena. But sarrow takes its hold on him, and he must protect Equestria from monsters, MLP bad guys, Sunny Town, and... Himself...
Nyx gets sick one day and accidentally hits her little brother with her magic, sending him to an alternate Equestria, where he realizes that he's not the last human left as he thought.
Not everything we saw at the royal wedding was the only thing that happened that day.... At her brother's wedding, after chrysalis sends her to the cave, twilight loses consciousness and has a vision, a dream in which she meets a nine-tailed beast
Master Oogway finds Spike near the peach tree after going for a walk, he learns that he was called by the universe to help the future Dragon Warrior with his battles, and he takes him in and trains him to fulfil his destiny.
Sequel to Twilight Runs Away. No longer a powerless blank-flank, Twilight Sparkle faces the return of Nightmare Moon... with Twilight having no idea what her magic might do next!
Don't tell me you never thought it odd, that whether she was a parasite, a fractured personality, or a corrupted version of Luna, Nightmare would stick around when someone was holding her kryptonite?
It's been many, many years since Nightmare Moon's banishment. Seeking to fill the hole in her heart, Celestia adopts six little fillies. Little does she know that they'll do much more than that.
Twilight and her acquaintances she met in Ponyville have finally arrived at the Castle of The Two Sisters, prepared to face off against Nightmare Moon but it turns out they wouldn't have to.
For three thousand years he waited, mourning the loss of his mate. But now he found her but she doesn't remember what they had. Luckily Sombra has a spell to fix it.
Spike gets captured by an alien group called the Kraang and is brought to another dimension away from his home, he is rescued by 4 mutant turtles and is taken in by them and trained to stop them and return home
Gleaming Shield has been pulled from normal guard duty to escort a dimension hopping former criminal around Ponyville, nope, nothing weird about that at all.
After her brother and Sugar Belle get together, Applejack decides it's finally time to give this whole "relationship" business a shot. Only problem is, she's gonna need a bigger mailbox...
Twilight doesn't want to save Shining Armor. She just wants to get her revenge on Queen Chrysalis; complicating matters is the presence of a renegade Changeling who offers his assistance.