This story is a sequel to Equestria Ninja Girls: The Shredder's End

After defeating Kavaxas, the turtles felt it was some time for a little break. So they join Sunset Shimmer in Equestria to meet some old familiar faces, and gain a little cultural experience. While also dealing with new threats and dangers as well. Still nothing has ever stopped these green ninja machines before, and they won't now.

This story is a sequel to Turtles of Everfree

After the death of Master Splinter, the Rainbooms and Turtles team up to take the fight to the Super Shredder with the aim of ending him once again for all to avenge their sensei. Will their combined strength and friendship be enough to overcome the rage and evil of the most powerful mutant they've ever tussled with?

This story is a sequel to Equestria Ninja Girls in Space

After a mishap with a portal, the Turtles and their human allies find themselves joining the Rainbooms at Camp Everfree where there's mystery and magic in the air. With the Rainbooms gaining new magical abilities, they take their next step in their ninja training to learn to control their new powers and defend their friends from a danger lurking within the camp itself.

Sequel following the events of Equestria Ninja Girls in Space. Recommended to read before this.

This story is a sequel to Equestria Ninja Girls

Picking up where they left off, the Rainbooms after escaping the planet earth's destruction at the hands of the Triceraton Empire are given a second chance to stop them from destroying their planet. They're transported from Equestria back to their world on board a space ship where the turtles and their friend the Fugitoid set out into space to stop the Triceratons and retrieve the Heart of Darkness.

Sequel to Equestria Ninja Girls. Highly recommend read first before reading this.

Spike after moving away from his childhood home, comes back six years later and enrolls at Crystal Prep Academy only to discover his six female childhood friends are already students there. It would be a joy for Spike if it weren't for the fact his six friends had changed while he was away. Can he help the six remember the way they used to be before he left or are they too far gone to ever be who they once were?

Spike x Crystal Prep ShadowBolts. May be additional ones down the line.

This story is a sequel to A Ghost of a Nightmare

When a ghost haunts Canterlot High, the girls wonder how to deal with such an entity. Desperate, they seek the help of the Princess friend who knows friends who can help them. But with the Real Ghostbusters retired, the Princess will have to send in the next best thing. The Extreme Ghostbusters. Will the college university ghost catchers catch the ghostly menace of the girls school?

Continuation following the events of fics The Pony Ghostbusters and A Ghost of a Nightmare

Ten year old Anton MacLeod after losing his mother runs away from his cold and cruel aunt. Luna who had been keeping an eye on him through his dreams sees he had nowhere to go and no one else to go to decides to bring him to Equestria where she hopes the Mane Six and other residents of Ponyville will fill in the empty void in his heart that longs for a family.

Twilight and the girls of Canterlot High travel to New York to take on the Dazzlings who have allied with a mad man bent on revenge. The girls only hope to face the trio of sirens and their ally is in the form of four mutant turtles, their master, and their two human friends. MLP/Ninja Turtles crossover.

Inspired from a fan video.

When Five special gems are bestowed upon five human boys. They are guided to the land of Equestria to help protect it from the lure of three sirens who like many of their kind wish to spread their disharmony throughout the land and make all pony kind do their bidding.

This story is a sequel to Equestria's Warriors: King Ebon's Return

Continuing from the defeat of King Ebon, the former Serpent King after catching a ride back to the human world reconnected with the Orochi Sword to seperate himself back into the five Snake tribes Generals with one goal in mind. To Eliminate the Elements of Harmony and their human friends.