After coming into contact with a strange blue crystal that has the ability to enhance Unicorn Magic, Sweetie Belle accidently opens up a portal to another planet, bringing fourth an adventure with the Heroes and Villains of two different worlds.

(It could happen.... Only on The Hub!)

Coop is the expert pilot of a giant robot built for epic combat. His best friend Jamie, thinks he's an expert with the ladies.
Due to Jamie's big mouth and a not so gentle arrival in Equestria, it may take some time leave this strange colorful planet.
With M.E.G.A.S stuck in a new civilization to screw up, how will the ponies cope with the mayhem? Princess Twilight will certainly need the help of all her friends to watch over the human visitor who consumes all before him. Not to mention a red headed woman claiming to be the last human resistance soldier. At least the skinny jerk doesn't pose much of a threat, right?

If you haven't seen the show, this will still make some sense, but you should go watch it. If you don't like giant robots and screaming awesome then shame on you.

I do not own Megas XLR or My Little Pony Friendship is Magic. They belong to Cartoon Network and The HUB respectively.

Peace has returned to Canterlot High School and nobody fears Sunset Shimmer since the Battle of The Bands, but a new threat know as Decepticons, lead by Megatron, wants to conquer Earth and the rest of the Universe. Now Twilight Sparkle and the Rainbooms must join with Optimus Prime and the Autobots in their galatic civil war that last eons. Will the heroic Autobots prevail and bring peace to the Universe or will the evil Decepticons win this war and conquer Humankind?

Twilight finds an unfinished spell from Star Swirl the Bearded meant to view other worlds.
Coop tries to fix the Time Flux Control unit to go back in time to see a legendary wrestling match.
When these two things are activated simultaneously the Mane Six and Spike are pulled into the chaotic land of Jersey City.
Out of her element and completely outgunned, Twilight has no choice but to place her faith in Coop's destructive hands to rescue her friends from the Glorft. However, the seven friends aren't the only thing to make the trip from Equestria to Earth...

After being defeated by the Elements of Harmony, Discord escapes to a new world to try and cause more havoc. Now the Mane 6 must go on a journey that will make them discover more than they wanted to realize.

Crossover between Friendship is Magic and Transformers: Prime.

Rainbow Dash isn't having a good day.
She woke up lost, in a body that clearly isn't hers, no memory of how she got where she is, and she's being chased by creatures from the depths of Tartarus. Super fun.
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Ruby Rose is having a wonderful day.
Her team has been sent into Forever Fall on their first solo mission, to investigate recent sightings of Grimm. A bit low-key, but Team RWBY has needed the break since the last fight with the White Fang.
She's investigating some tracks when she hears a scream echo through the forest.

What she finds will change their lives forever.
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MLP/RWBY Crossver. No Ruby/Dash ships. If you want that, make your own.
Set post Season 2 of MLP, and post Volume 2 of RWBY; the tournament has not happened yet.

If you've never heard of RWBY, go to RoosterTeeth's Youtube playlist right the buck now and watch it. it is in reverse order, unfortunately but deal with it. Watch the four trailers first.

Not quite sure yet how far I'm going to take this, but I'll figure that out as I go along.

This story is a sequel to Rainbow Dash meets Ruby Rose

Discord was just messing around. How was he supposed to know that device under a tarp hidden in the back of Twilight's basement surrounded by "Do Not Touch" signs was dangerous? Now he's in a whole new world, without the supervision of the Princesses.
Discord thinks its time to have some fun.

Set about six months after RD Meets RR. Discord is reformed, but Twilicorn hasn't happened.

I would like to thank user soulknight13 for putting this idea in my head.

Edited 12/29/14, to space out paragraphs better.

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.