Starlight Glimmer has gotten her hooves on Twilight Sparkle's Friendship Journal. And a time travel spell. And a Driver. And a bunch of Ridewatches. And she realizes that she could fix everything with time travel and Rider kicks. So she does.
Over a hundred years ago, the Elements of Harmony were shattered in a battle with monsters called the Disharmonious. Now, with the threat returning to Equestria, new heroes must gather the fragments to fight against this threat.
Ponyville, haunted by a masked killer that returns whenever the moon turns scarlet. Good ponies falling to his blade. Kiva's blade. Just one catch. The ponies? Fangires out for blood. Everyone has a devil inside. Question is, does Kiva?
13 years ago Scootaloo's parents were killed by a monster invading their home. Now she's given a chance to fight back against the same monsters, but to do so, she must prove herself worthy of the title of Kamen Rider.
Twilight Sparkle and Sunset Shimmer have a leisurely talk on the couch. It is the most important–and dangerous–event in the history of both their worlds.
Manehatten, a crime and filth-ridden city. It's always been that way, at least for one Philip Finder, a hardboiled detective and PI for hire. A slash of serial killings, victims frozen alive by a monster called a Dopant. And now a mysterious woman...
An unknown disease sweeps through Canterlot City, attacking its youth, and a villain of the past seeks to progess it. It will take Unicorn and the expertise of a Legendary Rider to end this epidemic.
Stray magic is running rampant through Canterlot City and people affected by it turn into dangerous monsters. But through the use of an ancient family heirloom a new hero tries to save the city.
Among the many stories of displaced you'll find a surprising trend of the protag being turned to stone before coming back years later. Well what if someone decided to not let that happen to begin with, someone, with the power to become king.
Sento finds himself in Ponyville, where a mysterious villain named Faust steals his arsenal. He must now "build up" new forms by defeating new Smash. Are You Ready? (Kamen Rider Build crossover.)
Down on her luck, but never one to lose hope, Sonata Dusk falls into an interdimensional battle of ridiculous proportions when she becomes the (soon-to-be) legendary hero, Kamen Rider Taco!
Fangire. A race of creatures thought to exist only in myth quickly make themselves known. However, a hero rises to defend them. Kiva. FLuttershy and her friends struggle to find out who this Kiva is under his mask.