Please do check out the Reading List by Lance Omikron to navigate the Amalgam Universe most clearly

A massive war of titanic forces is taking place in the Kaiju's world. However, when two faction's leaders, the current Godzilla and his 'brother' Xenilla duke it out; humanity unleashes its most devastating weapon. Something beyond comprehension occurred and the boundary that divides worlds, if only for the briefest of moments, was torn to shreds. New forms are taken, new bodies assumed. But old hatreds die hard. But how well can hatreds continue in the world of love and tolerance? Especially with its own demons follow it there?

Godzilla Franchise by Toho Company Ltd.
My Little Pony is owned by Hasbro Studios.
This is a non profit fan-work and I claim no ownership on the IP itself.
Story created by Tarbtano
Co-created and Contributed by Faith-Wolff and Skylark8756

HOLY SHEETZU WE GOT FEATURED! THANKS GUYS!
6/27/2014
Now on TV tropes (Thanks Raidrik, VampyGirl; Lance Omikron, Ultimomant, and ZimFan!)

Kaiju Cast:

Godzilla a.k.a Gojira
Xenilla
Mothra
Anguirus
Rodan
Destroyah

[Character copyright of Toho and Daiei Company, artwork property of Matt Frank]

(for any G-fans, Xenilla is the kaiju you may know as Spacegodzilla. I changed the name because I got quirked about typing it repeatedly and am writing the story so it can at least be understood by just an MLP or just a G-fan; and thought it get very confusing that one character's name was just another character's name with an adjective. Also... don't pretend it's the most imaginative name Toho has every made)

(This story is a non-canon derivation of The Evening Sonata arc, The Sunrise Sonata. There are some minor spoilers.)

Lying in Hospital with multiple stab wounds and broken legs, Aria Blaze is cursing her misfortune and the continuation of the miserable course her life is taking.
Unexpectedly, she receives a visit from her sister, Sonata Dusk. But something is wrong...

This is a nightmare style story, and contains scenes some may find disturbing... if you can picture them in your head, I mean.

Coverart by thegreatcat14

This story is a sequel to Adagio Needs Sunset's Socks

After finding out why it was Adagio Dazzle needed her socks, Sunset Shimmer goes to have a talk with the Dazzlings. When she does, Aria Blaze says that she's in need of her jacket.

Sunset gets the feeling she's just being messed with now.

This story is a sequel to Shut Up And Drive

Now that both of her fellow roomies and former sirens have gotten their own hobbies, Sonata finds herself wondering what her new talent could be. Of course, like her favorite TV show couple, that ship has yet to sail.

If only Adagio and Aria were more supportive.

Artist:Mit-Boy

After their defeat at the hands of the Rainbooms, the Sirens wanted to make a break for it, leave Canterlot, and regroup someplace else.

But with the authorities now onto them, that isn't an option.

Faced with being sent to juvy or worse, an orphanage, the Sirens are given an alternative they don't particularly like:

Being "rehabilitated" by their enemies.

At Principal Celestia's suggestion, the Sirens are separated from one another, and each is sentenced to live with one of the Rainbooms. Adagio is sent to live with Sunset Shimmer. Sonata is sent to live with Pinkie Pie.

Aria is sent to live with Fluttershy. One of these girls is in for a whole lot of trouble.

(A "dueling stories" fic exchange with Mirai-chan, inspired by Andrea Libman and Diana Kaarina playing twin sisters on Strawberry Shortcake's Berry Bitty Adventures.)

Rated teen for language, innuendo, and hygiene topics.

After the Battle of the Bands, a new threat makes itself known in the human world. The problem is, when the creature you need to defeat gains power from the magic of love and friendship, how do you defeat it? The answer seems simple enough: use the power of negative energy.

The only ones who can use the power of negative energy? The Dazzlings.

Oh, dear.

7/7/2016: Now with cover art designed by the very generous Novel-Idea! Thank you so much!

“Father…” Adagio whispered. “Please spare them?”

The mountainous digits closed down around her. But she did not swim away. She stared back up into those ageless yellow eyes with nothing but fear and respect. Before his fist closed around her, he whispered back.

“No.”

Now being proofread by the wise and ever-present Idsertian, who's patients for my idiocy transcends history and the world.

Rating changed to "Teen" because reasons.

Inspired by multiple failed ideas in the past.

Enjoy!

Adagio thought she was the best there ever was. She always thought and assured that she brought her sisters to victory, or at least got close to it, and that her sisters always screwed up. Well... she was wrong. And now, she thinks differently...

Rated Teen for swearing

Cover from the comic 'Rainbow Rocks Epilogue' from RileyAV!

Without their voices, the Sirens can't cast any magic.
And without their magic, the Sirens can't survive.
Adagio is well aware of this, and even though Aria abandoned them, she's trying her hardest to take care of Sonata - she knows it won't be long before they succumb to their hunger and starve.
There's only one person who could help - Sunset Shimmer. But would Sunset and her friends be willing to help, after everything the Dazzlings had done? Will the Sirens find a way to survive, and finally get their sweet atonement?

Spin off story: Aria Ablaze

Cover art by me.
Rated T for mentions of sex and swearing.
This fic was inspired by 'Sweet Atonement' by Xandria. I'm only using the title because I think it fits really well and I like the song.

The Dazzling's, in dire financial straights after the Battle of the Bands, open a restaurant with Anon. They solve mysteries. Cuteness ensues.

The Rainbooms are still jerks to them. Sunny is ok.