A story lovingly ripped off from the Futurama episode of the same name.

Twilight gathers the girls to her basement to reveal her latest invention. Unfortunately, they get distracted by another of her inventions: the 'What If" machine, a device capable of answering any 'what if' question posed to it. Follow along as the mane six discover the improbable scenarios that could have been their lives.

(Contains spoilers of MEGAMAN ZERO, MEGAMAN X.)
After nearly being killed by Dr. Wily. Zero learns a few simple truths about himself that put his entire life into perspective. As his rage fades, he finds himself exhausted from the constant war he has had to wage to survive. After surviving the explosion of ragnarock and the landing on is home world. He seeks a different form of releif. With the help of Cyber elves X, Elplizo and the four guardians, Zero finally finds a world with no technology. A land called Equestria

(First few chapters detail Zero's arrival on Equestria. The story will center around him, and will feature random members of the pony society. as a result I'm gonna leave the Cast list fairly blank for the moment.)
TITLE PICTURE badly put together by me. (LOLZ)
Zero artwork taken from google. MLP cast pic thing by Crunch Nugget
http://fav.me/d4m4teq [link to pic] ^_^ its simple but it works. Will have a second title image later on, but that on would be spoilerish if used now.
Oh yes, Megaman, Megaman Zero, and all other Megaman related References are thanks to Capcom for making the utterly awesome game.
[thanks to the 'how to write cross overs post thing that reminded me about that, I apologize for how long it took me to credit those I owe much to.]

after an accidental launch of a ponymade rocket. the mane 6 find themselves on board and heading towards a strange place. landing in teufort, they meet the red team. after a bumpy meeting they friend up and try to get a new rocket fixed to get back to Equestria.

the story takes place in between season 1 and 2 of mlp
as for TF2 it takes place shortly before the pyromania update but after the earlier comics and meet the's

yeah...an American Dad crossover

Stan and Klaus enter together in the annual Canterlot Intelligence Agency talent show but when Roger feels rejected he takes matters into his own "hands".

Scarlet had seen many things in her travels throughout the Wastelands and thought she had seen every during her recent year in the Mojave Desert. But due to a strange energy phenomena right as she was teleporting, she arrives at a world unlike her own.

Rated Teen: It's a Fallout crossover, do I need to explain why?

Has a Tumblr (If anyone is interested that is...)

Ponyville faced an ordinary day, but then night came, and with it a massive gateway into another world. It closes before any action can be taken, but now the Mane Six and Canterlot nobility are tasked with finding out what they can about the gateway. Who created it? Where did it lead to?

And most importantly, did anything come through?

Takes place after Season 2
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One courier, one Queen, a simple delivery, and an incredible destiny. The Mojave Wasteland is a place filled with opportunity, danger, and adventure. For some, it is home. For others, a means for power. For the Courier? The birthplace of his legend.

The Reaper War was a harsh and cruel mistress to the galaxy. Trillions of people died. Thousands of worlds burned. Annoying reporters got kneed in the stomach. But above all, tales of heroism; the Miracle at Palaven, the evacuation of Uqbar by a single Alliance ship, the reconciliation of the geth and the quarians over a century-long feud.

But above all else, the N7s.

While not technically N7s, Alliance Command was willing to let the name be used. The N7s were balls-to-the-wall hardcore badasses; four of them were usually enough to hold a position against endless waves of indoctrinated humans, rogue Geth, Reaper Husks, or Collectors, made of a species long passed. No species or gender was restricted because no species or gender was safe. And one of these teams - Aleph Squad, a six-man testament to diversity and asskickery, was one of the best of the best.

After the end of the War, however, Aleph Squad went MIA. Nobody knows what happened to them. Not even Aleph Squad knows what happened to them. All they know is this; something went really wrong with the Crucible, because now they're stuck on a planet full of colorful talking horses and they can't get off.

"This is a tale said around many a camp fire here in the Mojave. Some will tell you its a tall tale made up by drunken caravaners to past the time on the long and winding roads, but this is a true story. So come take a seat by the fire I have a fresh piece of mole rat in the pot if you care to indulge me with an audience... the story is of the strange pair..."

Thank you to frieD195 for editing and making it look pretty!
Will add tags as they come up.

The mane 6 are in a strange new land and have no idea how they got there. everything is block shaped and in 16x16 pixelation. little do they know they're in the Minecraft universe, and even more little do they know, there are dangerous creatures who come out at night. but one book they find has taught them the basic necessities of how to survive. (minus the baddies at night thing)