The first part of the story is where we find one of the turtles on the planet known as Mobius, where he teams up with a blue hedgehog who travels faster than the speed of sound.
Out in a plain, open field in Mobius, Sonic the Hedgehog was kicking back and relaxing. Sonic was the most carefree; though, when needed, he becomes the hero who never backs down from a fight. As Sonic relaxed, he looked up at the blue skies, clouds slowly passing by. The hedgehog took a deep breath.
"Today sure is nice," he said to himself. I wonder what Eggman's up to..." He shrugged. "Well, whatever it is, I'll just beat him like I usually do."
A scream echoed in the distance, followed by a loud thud. Sonic stood up, wondering what that was all about.
"I better check it out."
He zoomed toward the direction where the noise had came from.
Slowly opening his eyes, Michelangelo massaged his temples.
"Ugh," he groaned. "I think I ate somethin' I shouldn't have." He blinked a couple times, quickly stood up and looked around. He found himself in the middle of the forest. "Aw, man! Wherever I am, I hope my bros are here, too. Yo, Raph! Leo? Don! Come out, wherever you are! Seriously, guys, this is not funny!"
"Hey pal, are ya lost?" an unfamiliar voice said behind him.
Without turning around, the ninja turtle said, "Oh, yea! You have any idea where I am, like the planet or somethin'?"
"You're on Mobius."
"Oh, okay, I'll just find my bros and..." His sentence drifted, his eyes widening with shock. "WHAT?!" Michelangelo turned around and saw who he was talking to: a blue, anthropomorphic hedgehog. He let out his signature girly scream. "What the shell are ya?!"
The hedgehog raised a confused eyebrow. "I'm a hedgehog...?"
"You're the weirdest hedgehog I've ever seen."
"You're not normal yourself." The hedgehog looked up at his face, looking at the ninja turtle's mask. "Why are you wearing a mask? Trying to keep your identity a secret?"
"No; I'm a ninja." Michelangelo pulled out one of his nunchucks. "See? Ninja weapons."
"A ninja, huh?" The hedgehog smiled. "One of my friends happens to be a ninja."
"Ya serious? COOL! I'm Michelangelo, but you can call me Mikey, or Mike, or bro, or dude!" He gave a thumbs up.
The hedgehog gave a thumbs up as well. "I'm Sonic, Sonic the Hedgehog!"
"Why're ya called that?"
Sonic smirked. "Watch this!" He took off in a blue blur, running all around, moving back and forth, to and fro, side to side. The ninja turtle stood in awe as Sonic stopped right back where he started.
"Totally awesome, dude!" Michelangelo exclaimed. "You must be like a super hero or somethin'!"
The hedgehog shrugged. "It's what I do. Come on, I'll introduce you to some of my friends."
"Cowabunga!"
As the duo left, they were unaware that they were being watched... Stirring in the bushes, Ivo Robotnik, or more commonly known as Dr. Eggman, was spying on them.
"So, the blue pest has made yet another friend," Eggman muttered, "and quite a strange one at that. Hmm..." He uttered an evil chuckle. "That gives me an idea on how to get rid of Sonic the Hedgehog once and for all."