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Moon Girl Magic Meets Mutant Mayhem!!

Summary:

Lunella Lafayette and the Teenage Mutant Ninja Turtles were practically neighbors, but their paths had never crossed.

Until one fateful night, these teens find out that despite appearances, they have a lot more in common than they first thought!

Notes:

Apparently MG+DD and ROTTMNT were both made by Flying Bark Productions, which is why they have the same energy and overall greatness. Once I knew this, a crossover was inevitable.

This is also my first-ever crossover fic, so no one is allowed to be mean to me.

Chapter 1: New York City - What A Town

Chapter Text

It was a normal start to an evening in the Lower East Side.

Normal to Lunella Lafayette, anyway. She and her partner in justice, Devil Dinosaur, were on patrol tonight for any nefarious criminality who decided that the LES was easy pickings. Not anymore!! She and D were a relatively new pair of superheroes on the scene, but they definitely made a name for themselves as homegrown heroes.

Casey Calderon, her best friend and manager, had a Dads Date to attend, so Lunella was on her own for the evening as Moon Girl.

“Okay, D,” Lunella hummed as she calibrated her jetpack while resting on D’s sizable snout, “things look pretty quiet tonight. If the noise doesn’t pick up in the next half-hour, how about we bring it in back home? It’s Friday, which means movie night!”

D growled in delight, requesting a film in his own dinosaur language, one in which Lunella was fluent.

“Jurassic Park again? D, you need to branch out.”

D shrugged at that suggestion as the two continued on. They received enthusiastic greetings from everyone they came across. And was it any wonder?

Despite being a borough of New York, one that should have been under the watchful eye of the Avengers, it seemed that they had more than their fair share of villains plaguing their people. Lunella, with the help of Devil and her own genius, took it upon herself to be the hero that the LES needed and deserved.

Where else other than NYC could a giant dinosaur walking up and down the street be seen as a normal thing? What a town.

“You hungry, D? Your favorite hot dog cart is up ahead.”

Even if she wasn’t fluent in it, she could have known D was already way ahead of her.

“That’s what I thought! And I could use one, too!”

 

Meanwhile, in Queens, four teenage mutant turtle brothers were about to dig into a pizza when an 80s jingle rang out. Three of them groaned in agony while the fourth started to dance while checking his phone.

Raphael, the big guy and leader.

Leo, the wisecracking middle child.

Donnie, the tech genius and twin to Leo.

Mikey, the responsible youngest.

“Donnie, you have got to change your notification tune to something this century.”

“Raph, you know full well that my mojo comes strictly from 80s synthpop, thank you very much. Mikey. Back me up.”

“Nah, I’m with Raph. Something fresh would be a good change.”

Donnie pointedly ignored Mikey and re-read his phone screen for the sixth time, eyes widening in interest.

“You want fresh? How about this?! Leo, Raph, Mikey, are you guys familiar with the Lower East Side?”

“You mean that Manhattan borough?” Leo asked before stuffing a slice of pizza into his open mouth. “Ah, Little Italy, what a blessing.”

“What’s up, Donnie?” Mikey asked. “Trouble?”

“A-yup. It looks like we’ve got a titanic-sized mutant who loves hot dogs.”

“How titanic-sized?” Raph asked, eyebrow raised.

In response, Donnie tilted his phone and showed the screen to his brothers, who all gasped at the CCTV footage of a giant red dinosaur downing a cart of franks in its little arms.

“Jurassic Park level.”

“Looks and sounds like… I’m sitting this one out,” Leo hummed before taking in another slice. “But have fun and tell me all about it back at the lair.” That earned him a knifehand jab on the top of his head from the eldest.

“And that, Leo, is why you ain’t the leader,” Raph said matter-of-factly before standing up and punching his open palm, a look of pure determination on his face. “Come on, boys, let’s take down the T-Rex.”

“Leo, let’s get a portal going, we need to help out ASAP!” Mikey said as he whipped out his weapon.

“All right, all right,” Leo sighed. “Why is it we always do cross-city adventures when it’s my turn to pick the pizza place?” He gazed down forlorn at the half-eaten pie and sighed heavily before unsheathing his sword. “‘Tis better to leave a pizza half-eaten than to never have partaken in a single slice.”

“Tonight, Shakespeare,” Raph growled.

“As you wish.” Wiggling his hips, Leo circled his katana into the air. “Hatchi matchi!!!” As expected, a bright blue portal opened up. Right below the brothers. This unexpected development leading them to fall through it while screaming their heads off.

 

As soon as Devil put down the hot dog cart and Lunella paid for her buddy’s late night snack, they turned to see four green figures fall out of a blue portal in the sky and land in a heap onto the street below.

“Looks like movie night is on pause, D. We’ve got trouble after all!!”

Devil grumbled at this news (he was really looking forward to that popcorn!) before shaking off his disappointment to focus on the problem at hand. Citizens had already scattered in fear at the sight of the portal and its weaponized travelers, so it was him and his best friend Moon Girl versus four teenage mutant ninja turtles!

Time for some Moon Girl Magic!!