Spike awakens within the Realm of Ninjago after being sucked into the Crystal Mirror after it's been behaving strangely, as a result after he and the Mane 6 investigate it, he is sucked into the Mirror upon hearing a strange voice, and the Mirror is broken which prevents him from coming back in any known way.

Spike awakens on the doorsteps of an old Monastery and is found by a man named Master Wu, who takes him in and lets him join a team of Ninja who all have cool Elemental powers, despite not having any powers.. yet, he's trained as a ninja to unlock his own potential and find his calling. And now Spike's life is being a part of a team who can be a new family with him, and hopefully he can find a way home one day..

When Twilight is sent to Amethyst Harbor to prepare for the Summer Sun Celebration by Princess Celestia to meet up with her other student Sunset Shimmer, Twilight is less than happy that her warnings about Nightmare Moon are being ignored. When Nightmare Moon finally reveals herself, Twilight and Sunset find themselves being assisted by two stunt flyers of the Wonderbolts, an artist and a gardener pony.

Magic continues to leak from Equestria to the human world. Fortunately, Twilight Sparkle's inventions have been able to track the magic-infused objects, and the Rainbooms set out on yet another adventure.
The bad news is the items have been moved to Gotham City. The seven young women will have to dive head-first into the most crime-ridden city in the country, hoping their magic abilities will be enough to protect them, and hoping they can avoid a confrontation with Gotham's resident vigilante, the Batman.
Then again, trouble has a habit of finding them.

My attempt to cross Equestria Girls with my favorite cartoon of all time, Batman the Animated Series. Coverart by Little Tigress

This story is a sequel to S.M.I.L.E Dragon (Sweet and Elite)

Ever wondered where Spike was, whenever he’s absent? Well, all will be revealed in these de-classified files.

The life and time of Spike the dragon as Agent Dragon Fire – S.M.I.L.E (Secret Monster Intelligence League of Equestria)'s Dragon Agent.

Season Two

Spike takes on the S.M.I.L.E agency’s training program to get him up to speed with the fighting techniques, the gadgets to better prepare him for the field missions he’ll be on with Agent Sweetie Drops and Fleur de Lis.

Spike helps Fleur and Sweetie Drops stop a swarm of parasites that’s been eating up Appleloosa’s apples. On the way home, Spike hitches a ride with Rarity and Pinkie Pie near the end.

Spike helps Sweetie Drops with her date with Lyra Heartstring. Conveniently, he happens to be having a date with Rarity in the area.

Spike, Fleur, and Sweetie Drops help Cranky Doodle Donkey rescue Steven Magnet from the changelings.

A dangerous criminal is planning to open the gates of Tartarus and set the monsters, and Equestria’s worst criminals loose.

Spike, Fleur, and Sweetie Drops must recover a super secret, and powerful recipe that was stolen.

There’s more going on to the story than what was seen on TV. And Spike knows it.

Season Three
Sleepless in Ponyville
Wonderbolts Academy

Season Four
Daring Don't
Flight to the Finish
Rainbow Falls
Somepony to Watch Over Me
Maud Pie
Leap of Faith

Season Five
The Cutie Map Part Two (Though Spike appears in Part One)
Bloom & Gloom
Appleloosa's Most Wanted
The Lost Treasure of Griffinstone
Rarity Investigates
Brotherhooves Social

Season Six
The Gift of the Maud Pie
On Your Marks
No Second Prances
The Saddle Row Review
Stranger Than Fan Fiction
The Cart Before The Ponies
Buckball Season
The Fault in our Cutie Marks
Viva Las Pegasus
Where the Apple Lies

Season Seven
Forever Filly
Parental Glideance
Hard to Say Anything
Not Asking for Trouble
Discordant Harmony
The Perfect Pear
Fame and Misfortune
Campfire Tales
To Change a Changelign
Daring Done?
Marks and Recreation
Secrets and Pies
Uncommon Bond

Season Eight
Grannies Gone Wild
Surf and/or Turf
The Mean 6
Friendship University
On the Road to Friendship
The Washouts
What Lies Beneath
Sounds of Silence

Shorts
Triple Pony Dare Ya
The Great Escape Room
Mystery Voice
Teacher of the Month
Starlight the Hypnotist
Sundae, Sundae, Sundae

Season Nine
Common Ground
Frenemies
Going to Seed
Student Counsel
2, 4, 6, Greaat
Daring Doubt
Growing Up is Hard To Do

During the time Thorax and Ember left ponyville after their argument with Spike, Ponyville is unexpectedly attacked by strange apes that have come for something, they proved to be a strong and deadly foe against the mane 6 which brought fear to everyone, but they weren't here for them, they were here for a certain purple dragon.. Spike. Spike tries to escape the monster's grasps, but he unfortunately is captured by them, and he is taken to a different world before his friends could rescue him, leaving him trapped in a new world.. alone.

Spike wasn't one to give up though, he came up with a way that got himself free from the apes, and he fled for his life to live, it left the apes to start searching for him after he fled, while their master is waiting for the report. During Spike's escape, he runs into a Purple Dragon like him after escaping into a swamp, the dragon's name is Spyro, and with nowhere to go, and Spyro having a kind heart, Spike's taken in by him and joins him and his little brother Sparx with. Spike's life has changed completely, and he and Spyro are about to go on a journey that will change both they're lives forever..

The San Francisco Police Department never called Adrian Monk for the easy cases. And this was one of the weirdest.

A top scientist had been found dead...at least, the part they found. He had been found lying with half of his body inside what appeared to be some sort of portal...and the other half? No one knew. Foul play was not suspected until it was revealed that his assistant was also missing, along with a device that could have dire implications for the Multiverse...

Cover art by the talented IrradiatedPirateBooty! I highly recommend their work!

This story is a sequel to The Omnitrix Hero

A month after defeating Shadow and his Negative Ten, Flash is still getting used to his new Ultimatrix. Other than that, things seem to be going well. At least until a hole opens in the sky.

Just when Flash thought he could take it easy, he finds himself meeting another teen with an alien watch. And as threats from old enemies make themselves known, the two must come together in order to save their worlds.

It's the battle of the millennium, with everything they love on the line.

Written with the help of SuperSonicHeroes

Art by SlidDiamond3214

TVTropes

Spike had never thought he would meet his birth parents, he had been with Twilight for quite sometime now and he was starting to lose hope that he'd ever meet them. But when he goes to the Dragon Lands to see the Migration, he not only meets a kind dragon who helps him through the place, but he also helps find someone he never thought would get to meet..

Anon-a-Miss has struck and Sunset Shimmer just has to get away from it all. Fortunately, help has arrived to whisk her away from all her problems, as she indulges in one of her passions

Flash Sentry and Twilight Sparkle seem to enjoy their lives, normal as it can get with equestrian magic around. But one day, they along with a girl named Daisy Glimmer, and a couple of demons from hell, (Blitzo and Verosika), meet a strange man with a strange box and their lines have changed for better and for worse than they could ever imagine. So here's a question for all of you: Would you all like to travel through time and space in a box with a man that is not of this world for an adventure of a lifetime?