This story is a sequel to Equestria Ninja Girls: The Thievius Raccoonus
It's been quite some time since the vacation on the yacht, and there has been fun times with music and action. But then, the Rainbooms, Ninjas, Dazzlings, Shadowbolt girls, Coloratura, Vinyl Scratch and Octavia find themselves in another dimensional Earth, where music is transformed into electricity that powers the city they're in. But now they have to become a part of a music revolution, helping Bunk Bed Junction bring back Rock into the city.
Disclaimer: Postwarmonkey and I don’t own Equestria Girls, Teenage Mutant Ninja Turtles (2012) or No Straight Roads.