Because ponies are awesome, too.

After the events of Pacific Rim, the aliens invaded a whole new world. Equestria. The ponies are as unprepared for this threat as mankind was, except for one more thing. A book, detailing the construction of the one weapon that can stop the Kaiju, known to the ponies as Majors. You know what they are.
Jaegers.
Convert them for ponies, and it's the Equestrians' time to shine. It's time for the Kaiju to be defeated, one more time. It's time for those aliens to learn their lesson: You should always beware the cute ones. Especially one Twilight Sparkle, formally student of Celestia's School for Gifted Unicorns, currently ace Hussar, unicorn pilot of Sonic Eclipse. A traumatic accident once forced her to retire, but the invasion is getting hotter, the defenders are getting slaughtered, and with the help of fellow pilots Rainbow Dash and Applejack, other hussars Lightning Dust, Trixie Lulamoon, and Time Turner, weapons designer Pinkie Pie, Captain Fluttershy, and Jaeger designer Rarity, she's going to do what she does best: re-pilot Sonic Eclipse and cancel the apocalypse.

Notes: This is not a ponified rewrite of Pacific Rim. Yes, the skeleton plot will be the same, the villains will be the same, and the Jaegers will be ponies, but the non-skeleton plot will change, the ending will change, and the characters don't mostly match up to movie characters (I will admit that some do, and that some plot elements are from the movie)
Please enjoy, read and review!