Sonic High: Rainbow Rocks

Meanwhile in the dimension of Mobius, Sonic the Hedgehog and Miles “Tails” Prower were soaring through the skies in Tails’ trusty bi-plane, The Tornado.

“Hey Tails, How much long till we reach Green Hill?” the blue hero asked.

The two-tailed fox nodded. “We should be there in 2 minutes,” he answered.

Sonic sighed, rubbing his nose with a finger before noticing something gliding down from the clouds. “Whoa! What’s that?” he wondered.

Tails noticed as well and flew the plane over for Sonic to grab the object.

Sonic unfolded the paper airplane and began to read the note aloud.

“From your friends at Canterlot High.

This may seem sudden and we hate to bother you if you were in the middle of something important but it looks like we’ll need you to come back and help us again. These 3 mysterious girls suddenly came to CHS and began to sing, turning all the students against each other and changing our upcoming Musical Showcase into a Battle of the Bands. All of us, including Twilight’s friends, think that the trio is up to something.

Find a way back into our world as soon as possible. If they can convince the entire school, even the Principal and Vice Principal, to rival one another, there’s definitely something off about them.

~your friends at CHS.”

Sonic grinned. “Sweet! Another adventure!”

Tails frowned. “Hmm…able to convince by song…Those girls sound a lot like Sirens!”

Sonic raised an eyebrow. “Sirens?”

Tails nodded. “Sirens are beautiful but dangerous creatures. Kinda like mermaids but they use their voice to entrance others and lead them to their demise. But these ones sound like the ones I read about back in Equestria. Apparently, they use their voices to feed off the positive energy of other ponies to increase their powers. But somepony by the name of…uh…Starwhirl the Bearded…used his magic to send them to another world. One where he believed that they wouldn’t be a bother to both Equestria and that other world. Looks like that other world is the one where that note came from! Hang tight, Sonic! We’re heading for my lab!” he announced.

Sonic did so as the plane descended.

Later on the ground, Sonic hopped off the plane the instant it touched down. After parking the Tornado, Tails walked into his workshop.

Sonic followed. “That was a long time ago. How come they’re popping up just now?” he asked.

Tails shook his head. “I don’t know nor does it matter. What really matters is that we go into that world and take out those girls before things get outta hand!” he said.

Sonic was surprised. “Whoa whoa whoa! First off, they said that I and only I go. And second, I don’t know how it would work out if there were 2 of you!” he reminded.

Tails frowned. “Oh right. We don’t want to cause a paradox of some sort. Anyways, just give me a few seconds to generate the portal.”

Sonic nodded and watched as Tails began to type on the control panel.

“Coordinates set…full power level…and start!” the two-tailed fox exclaimed as he pushed a lever.

The platform in front of the control panel lit up as time and space on the platform was ripped, opening the portal to Canterlot High!

Tails beamed. “It worked! Ok Sonic, keep in mind that those girls use their voice as their only weapon. Be careful!” he warned.

Sonic nodded. “Will do! I’ll be back soon!” he exclaimed before accelerating into the portal.