The planet of Chikyu is pretty odd, from an outsider perspective. There are anthromorphic sapients of every stripe and sort, the world president is a dog, its greatest warriors are alien monkeys, the average IQ (outside genius scientists or children) is somewhere below 50, and magic orbs raise the dead. How much difference would adding a pony that barely talks really make?
...quite a lot, apparently. Just ask Mr. Popo...if you dare.
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Dragon Ball Z Abridged crossover
Edit: Cover art by CaioCoia.
On DA: https://www.deviantart.com/caiocoia

Many people have many theories about Scootaloo. Some think she's an orphan. Some think she's part of an abusive household. Others still worry that she's somepony's illegitimate offspring that's hidden away.

However, the truth is far from that. She has a loving mother and father, and she means the world to them both. They've gone to great lengths all for her.

However...they're just a little...strange. Especially since neither one is comfortable with coming out except at night.

Rated Teen for some adult language.

Partially inspired by this story by Colonel J.

Edit: New Cover Art by G_Haze! Found here.
Edit 2: And G_Haze has decided to update the cover art, and damn does it look good.

It is recommended you read this story in one of the Dark formats in order to better distinguish the colored text of the 'other voices'.

Hey folks! Name's Deadpool!
I thought that was all of us?
It is. He's just introducing us as a single entity.
Will you two idiots be quiet? I'm trying to talk to the readers! Anyway, I know you've all been waiting with bated breath for this story ever since it was announced, and here it is! And it's going to have everything you'd expect of such a story!
Explosions!
Adorable father-daughter bonding moments.
Total babes!
Awkward hilarity.
Not to mention me, Deadpool, the merc with-
Daddy, who are you talking to?
Oh hey Chryssi! Just telling the readers about-
Are you breaking the fourth wall again? I thought you were going to teach me how to do that today.
That's what I'm doing! Say hi to the readers, Chryssi!
You will all love me and despair as I feed upon your adoration to become an unstoppable god!
That's my girl! Hey, wanna read the story with me?
I brought popcorn and chimichangas.
*sniffle* You're the best thing to ever happen to me, Chryssi!

Hey look! We've got cover art now!
Aww, you were so cute at that age!
And I'm not cute now?
Now you're sexy!
We should thank Sanyo21 for the image.
Then I guess I'll throw up a link! Nnnghha! http://www.fimfiction.net/user/sanyo21
...did you really have to literally throw it?
Yup!
Oh, and for those who don't know yet, this story is part of the PWNY-verse. It's not all about us - even if it should be - but you'll probably enjoy it to-Oh, stop making me a shill already!

Oh, by the way, it's recommended you read this story in Dark or Ultra Dark. Some of the colored text doesn't show up clearly otherwise. Not necessary, but just a suggestion.

MLP/Undertale crossover.
Not a PWNY-verse story.

Long ago, the Monsters and Humans fought a great war. The Monsters lost, and were sealed in the Underground. It would take the power of seven human souls to break the barrier that kept them imprisoned. They only had six. And so the Monsters waited and hoped, praying that another human would find their way to the Underground. Some thought the seventh soul would give their King the strength to break the barrier. Some dreamed of a human who would be their friend, and save them all...or had nightmares of one who would bring back the war.

...but nobody came.

...but somepony did.

Eons after the war, with no way to tell how much time had passed above, a tiny blue filly with wings and horn fell into the underground, calling for her Mama. None knew the poor creature's nature or origins...but her soul was powerful with magic, even more so than a human soul.

None can know what will come...of this little 'Woona'.

Cover art by Sanyo21

This story is a sequel to Wily's Wittle Wub

21XX...

A dark period in the world's history. With the rise of Reploids, society was thought to enter a new golden age...until the rise of the Mavericks. Driven mad by viral infection - or simple greed and rage - these Reploids become a drastic threat to the world peace...and the conflict between them and the Maverick Hunters would tear the world apart.

However, a shining light of hope remains in Dr. Light's final creation...Megaman X. With his adopted pony daughter at his side, he shall-

Wait, what was that last part?
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Part of the PWNY-verse.

Edit: Now with cover art by sanyo21!

The Cooper Gang has faced many hurdles since they left the orphanage together. Each heist held its own hazards, its own problems, and its own consequences if anything went wrong. However, by working together, Sly, Bentley, and Murray have handled everything thrown their way.

However, their next mission saddles the raccoon leader of this little band of thieves with two hurdles he never anticipated, ones he'll have to handle himself: romance and fatherhood. After all, how could he resist the allure of the lovely Carmelita Fox, even if she is on the side of law enforcement? And an orphan himself, he could never turn his back on the lost, alone, and scared Coco Pommel, a tiny pony filly small enough to fit in his hand...and threatened by the worst of the worst of the criminal world.

Little did he know just how much these decisions would change all their lives.

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Part of the PWNY-verse.

Edit: New cover art by Technopathic
Edit 2: New fan art by The Emerald Nightingale