Firem78910: hey guys firem here with the first of the new fics

Isara: hope you guys enjoy this one I think this might be the first one a Metroid x My Hero Academia crossover

Firem78910: that's right I teased this idea a few months back and as I said back then I got the idea after I beat Super Metroid on my SNES Classic system for the first time I'm quite proud of that

Isara: which took you 7 hours and 35 minutes which for a first casual playthrough is not bad

Firem78910: don't forget with a 90% item completion but anyway in with the fic

Firem78910

Presents

A My Hero Academia/Metroid Crossover

Metroid: Dekiru

Prologue

Pirate raid of Earth

Planet Earth

Mustafu Japan

Year 2230

Within the Milky Way galaxy. There is a small blue dot of a planet called Earth. The dominant species of Earth are called Humans. At first one would assume that the Human Race isn't anything special.

Except for one thing. Quirks.

Quirks are special abilities that give Humans extraordinary powers. As of now, 80% of Earth's population has a Quirk.

This led to the idea of Professional Superheroes or Pro-Heroes for short. But this also leads to the creation of villains.

Despite this however peace held firm. Until in the year, 2230 everything changed.

Planet Earth was under attack. Invaded by aliens.

It was sudden and unprovoked. It was also brutal and ruthless.

The beings who did are varied but they all shared a name.

Space Pirates.

They had caused untold amounts of chaos. Looting, destruction, and rape. The Pro-Heroes had tried to fight but only managed to hold them back. Several Pro-Heroes and civilians were captured as a result.

One of those heroes was Rumi Usagiyama. Also known as the Rabbit Hero Muriko.

Rumi has an athletic build with muscular arms and legs, and stands slightly below average height. Rumi has dark skin, red eyes which are tilted slightly inwards, long eyelashes, and straight short white hair. On her head, she has a pair of long white rabbit ears pointing upwards with a slight crook. Along with these, she also has a white round tail, which gives her overall design a definite resemblance to an albino rabbit.

Her hero costume consists of a sleeveless white leotard with dark purple trim around her shoulders and waist, a wide, yellow crescent moon design over her chest, and a single thick metal plate wrapped around her midriff. She wears purple thigh-high boots to compliment her leotard, with more plating around the heel and toe areas, making her feet look like those of a rabbit. She also has a pair of thick white gloves on her hands with long cuffs, sporting small triangular protrusions around their edges.

However during the invasion, her left forearm was crushed and her right shin was stabbed by the Pirates, while the tip of her right ear was sliced off. In the aftermath of that battle, she now possesses a simple prosthetic left forearm and right leg.

Rumi tsked as the pirate threw her into a cell with a bunch of civilians.

The civilians took a look at Muriko and began to panic.

"Oh no Muriko!"

"She's injured!"

"What are we going to do?!"

"I know what we're going to die!"

"Mama I'm scared."

"Stay strong honey Endeavor and Athena will save us"

"Hey hold up I'm still here even if I'm down an arm and a leg. But I can still fight." Rumi said as she gave a grin.

Despite the grin, Rumi knew that she was screwed. She charged feet first at the Space Pirates only to nearly die by their hand.

She overheard some of the space bastards that they were going to break in this knock-off lapinite.

She realized that there must be a planet of submissive rabbit people somewhere in the Milky Way and she knew full well what happens to submissive rabbit people.

Soon the cell door opened to reveal a giant alien and the smaller one bowed to it.

Rumi believed that this was the commander of the Space Pirates.

The commander used a device it had in its hands and used it to scan Rumi. Once scanned the commander grinned.

"You were right boys and girls she is a knock-off Lapinite oh we are going to have fun." The Commander said as it licked its lips.

But just before the commander could touch Rumi the room shook causing the commander to stop. The commander took out a communicator.

"Hey what is going on here?!"The Commander shouted as the wall blew up.

Rumi covered her face to assure debris didn't hit her face and the Commander gets knocked down to the floor.

The Commander stood up ready to take down whatever blew up the wall. But instead, it froze in fear.

The other Space Pirates looked confused and they decided to look where the Commander looked. They wished they hadn't.

Rumi was also confused as well and a civilian noticed as well and asked Rumi.

"Muriko-san why do the space monsters look scared." The civilian said.

Rumi didn't answer but then it was a Space Pirate that answered.

"That's because we are scared. There is only one thing in this galaxy that scares us." A Space Pirate said as the smoke cleared.

"Who?" Rumi asked curiously about who or what scared them so badly.

Then when the smoke cleared everyone saw an orange-colored armored figure with round and bulky shoulders, and a thick red chest plate becomes with dual lights. It also has an arm cannon pointed at the space pirates.

"He goes by many names but everyone simply knows him as The Prime Hunter: Dekiru." The Space Pirate said.

The Space Pirates didn't move a single muscle as the now named Dekiru aims with his arm cannon ready to fire.

What felt like hours only lasted a moment as Rumi threw a rock at a random Space Pirate. This caused the pirate to move to dodge the rock but it then realized what it had done Dekiru began to fire.

One by one the Space Pirates fell by the onslaught of the Prime Hunter: Dekiru. Rumi despite not having a normal arm and a leg herded the civilians away from the fight.

The Commander ran for their life knowing that facing Dekiru was tantamount to suicide despite the punishment of running away from a raid. Especially a class 0 world but even then the higher-ups knew that Dekiru and his allies had either a K.O.S (Kill on sight) or a F.O.S (Flee on sight) order. But for Dekiru himself it was a P.O.S or Pray on sight.

The Commander hears the screams of his subordinates and transmissions that the Galactic Federation ships have appeared on the system. But one transmission freezes the Commander's blood. He stopped his tracks as he is in disbelief at what he heard.

Soon Dekiru tracked the commander down as he aimed the arm cannon at him.

"This place, this backwater rock is your home world." The Commander said as Dekiru charged his cannon.

"Yes." Dekiru simply said.

"Well fuck." The Commander said as Dekiru shot it with a charged shot killing the commander.

Dekiru activated his communicator and spoke.

"Space Pirate commander killed, how are things on your end Xeno." Dekiru said.

A female voice responded.

"Everything going well on my end I ran into Cellophane and Lizardy." Though I'm pretty sure the latter of the two knew who I was. The now named Xeno said.

Well, she was a recommended student of UA. Dekiru said.

"So was Genesis but that didn't help her become one of the most feared Bounty Hunters in the Milky Way." Xeno said.

"I know Xeno. I need to check on Apollo, Spectre, and Gremlin." Dekiru said.

"Ok then see you soon De-Ki-Ru." Xeno said as communications were cut off.

Dekiru shakes his head as he spoke to the four of them. Both of them said that they finished their missions. Apollo led the rescues while Gremlin was in an improvised sniping contest with Snipe and Lady Nagant. Genesis led the Federation Heavy Weapons Teams and Spectre sabotaged various Space Pirate operations from the inside.

After that, he walks towards an exit where Federation soldiers were helping tend to the wounded, and the first person he sees helping the wounded was his daughter Eri.

Eri is a tall young woman with long bluish, off-white hair, which is parted in the middle of her forehead, almost reaching down to her waist. She has very wide, innocent-looking eyes, which are bright red in color. Poking out from the right side of her forehead is a small, brown horn. Eri's outfit is a white lab coat, a large dark red messenger bag with the strap sitting over her right shoulder with a little floral pattern decorating one of its sides. She also as a pair of hand cannons on her sides, a large staff filled with energy, and a pair of small white wings made of light on her back.

"Papa you're here! How are you and my Mamas?" Eri said.

"I'm fine as for your Mamas, their mopping up the remaining Space Pirates in the surrounding areas." Dekiru said as Eri nodded and treated another solder.

"Thank you." The Solder said as he laid down.

"Oi! You mind treating me soon!" Rumi shouted.

Eri simply walked up to Rumi and hits her in her head.

"Ow, what the hell!" Rumi shouted as she rubbed her head.

"I'm stopping you from aggravating your wounds! Besides the civilians and the soldiers take priority." Eri calmly said.

"I LOST AN ARM, A LEG, AND PART OF MY EAR HOW THE HELL DON'T I GET PRIORITY!" Rumi shouted.

Eri rolled her eye as her horn began to grow and glow. Once it reached its full charge Eri zapped her.

Rumi didn't scream but her eyes did widen. Bones were coming out of the stumps of her ear, arm, and leg. Soon muscle followed along with nerves and finally skin.

Rumi was shocked at the restoration of her limbs.

"That's why you were given a lower priority with my Quirk I can in layman's terms I can turn back to clock up to point of you not even existing. So please take everything I say as gospel alright. Now stay in bed." Eri said with a Dark yet motherly smile.

Rumi nodded quickly as she laid back down on to bed.

Eri went back to her other patients. Rumi on the other hand let go of a breath she didn't know she was holding.

"Huh true what they say. You don't piss off the White Mage." Rumi said.

Dekiru smiled as he said goodbye to Eri and went back to the command center.

As he went in he saw eight people around a table. Four were from Earth and the other four were from the Galactic Federation.

"Ah, Dekiru now that you're here we can begin the meeting. Now then before we start here is Nezu, Eraserhead, Endeavor, and Athena." The Federation General said.

Nezu is a stout man who appears to be a possible combination of several different animals, including a dog, a mouse, and a bear, which would make him a chimera. He has the head of a mouse with circular black eyes, a large scar over the right one, relatively rectangular-shaped ears with pale pink insides slanting outwards from the top of his head, and an elongated muzzle with a small round nose. His fur is white and has large, dog-like paws with pink pads and a thin tail like that of a cat.

He sports a white dress shirt, a dark red tie around his neck, a black double-breasted waistcoat, and matching dress pants. He wears orange lace-up sneakers with incredibly thick soles.

"Hello, my intergalactic friends how are this fine day. I mean besides those louts ruining things." Nezu said with a grin.

Eraserhead is a slender and tall, pale-skinned man with messy, shoulder-length black hair, that partially hangs in front of his face and half-opened black eyes. He is usually recognized for his worn-out appearance, often looking fatigued. His facial hair is almost always in a stubbly, unkempt state (unless he needs to look good for the press), and his eyes are tired and flat, unless he's in combat.

He sports a baggy black outfit that consists of a long-sleeved shirt and matching pants that tuck into his boots. He also wears a utility belt and his signature wrap scarf at all times. He hides a pair of bright yellow goggles underneath his scarf for when he needs to use them in battle.

"Meh welcome to Earth I guess." Eraserhead said as he looked like he wanted to sleep.

Endeavor is a tall, sturdily-built man with a very muscular physique. He has short crimson hair which he wears spiked up around his head and sharp turquoise eyes. His beard and mustache appear to be made of fire, but when he voluntarily turns off the flames on his face, a small amount of stubble shows around his jaw.

His hero costume is comprised of a tight, navy turquoise bodysuit, with lines of flames streaming across his chest, upper torso, arms, and most prominently his shoulders. He uses his flames as a makeshift mask around his eyes, and the tall boots he wears appear to be either made of fire themselves or constantly left alight, as only their soles and laces are visible around the flames. His bracers have been redesigned to look sharper and armor-like, and they now completely encase his arms. On the back of his hands are grill handguards that have a set of holes to flush a torrent of flames out the back of his hands if needed, and his fingers are exposed from the base knuckles.

His bodysuit also has large stripes running across his torso, with the spaces in-between being completely engulfed in his flames. Endeavor also added shoulder pads and a new belt, which appear to be made of the same material as his bracers. His belt is a stylized kanji for ¨Flame¨.

Endeavor growled a bit before remaining silent.

Lastly, Athena is a shapely and attractive pale-skinned young woman of slightly above average height with quite a round face. She has wavy blonde hair which reaches halfway down her back, two shorter pieces she leaves over her shoulders, side-swept bangs that frame her face, aqua-blue eyes with notable upper eyelashes, some slightly longer ones extending on each side, and pronounced lower eyelashes.

Her costume consists of a white bodysuit with blue armor plates, golden assets, a pair of Red boots, an Alpha symbol on her chest, and four Omega symbols. Two on the back of her hands and two on the soles of her feet.

"Hello everyone I'm Athena." Athena said.

Dekiru looked at them for a moment.

"Dekiru." Dekiru said.

"Alright, now that introductions are over we can talk about the Space Pirates and how we kick them out of your planet." The Federation General said.

"Well, then we should start an assault at their main base." Endeavor said.

"I agree with Endeavor, General do we have a location?" Dekiru asked as the General nodded.

"We do thanks to Apollo and Gremlin we have found the main base in a mountain near a place where the locals called Kyoto." The General said.

Athena's eyes widen as she knew where that location is.

"Mount Hiei. That's where the Pirates are located." Athena said as the General nods.

"That's right as for the plan itself is simple a carpet bombing of the base. After that Dekiru and his group will infiltrate the base and cause havoc." The Federation General said.

"I'll like to join as well. Edgeshot and Mindword would be good choices as well." Eraserhead said.

The Federation General looked at Dekiru. Dekiru nodded.

"Alright then just make sure you don't mess it up and Dekiru will be the commanding officer. Meaning you follow his orders." The Federation General said.

"Alright then. Despite being a Bounty Hunter he has the most experience against them." Eraserhead said with a nod.

"Afterwards Endeavor and Athena will lead the main force of whatever Pro-Heroes are left and the Federation troops at the base." The General said.

"I think that's fair." Athena said.

"Alright, then that seems acceptable." Endeavor said.

"Now then the operations will begin in two days' time. Since the Space Pirates know that Dekiru is here they will call all of their forces to the main base in… Mount Hiei right?" The General asked as Nezu nods.

Everyone in the room nodded.

"Very well any questions? No? Then dismissed." The General said.

Eraserhead looked at Dekiru for a moment before talking to him.

"Excuse me Dekiru right?" Eraserhead said as Dekiru turned around to face him.

"Yes, what do you need?" Dekiru asked.

"I'd like to ask you a question I've heard from the Pirates that this was your homeworld I want to know who I'm working with." Eraserhead said.

Dekiru thought about it for a few minutes before calling off his helmet. Making it disappear.

Without his helmet Dekiru is a tall young man, his round face is framed by a short mess of fluffy dark-green hair which sticks up at odd angles around his head, casting noticeably dark shadows onto itself. His eyes are large and somewhat circular, their irises the same green color as his hair. He also has a set of four symmetrical freckles in diamond formations, one on each cheek.

Eraserhead's blood ran cold as he saw a very familiar face a face he himself had seen him go from UA in not good terms.

"Mi-midoriya Izuku?" Eraserhead said in disbelief.

"Hello, Aizawa-Sensei it's been 10 years since I was forced out of UA." The now named Izuku said.

"Y-y-yeah. Is Eri alright?" Aizawa asked.

"She is. She had graduated from Medical school at age 15 I have pictures." Izuku said.

"I see I'm assuming that the others are with you." Aizawa asked.

"Is that even a question?" Izuku bluntly said.

"Fair enough… You know your old classmates would want to know what happened." Aizawa said.

"After we destroyed the Space Pirate base." Izuku said.

Izuku left as his helmet rematerialized.

Aizawa stood there quietly wondering to himself. Why did it end like this? Why did the HPSC interfere with UA operations? Why did they force them to expel Midoriya, Hagakure, Ashido, Uraraka, and Yaoyorozu? He knew Hatsume left UA willingly.

But most importantly what had happened to Midoriya? How did he go from a Quirkless Hero Trainee to the most feared Bounty Hunter in the entire Milky Way Galaxy?

Firem78910: and done I hope you guys like it but yeah Midoriya was expelled from UA

Isara: that was sad but I think that career change was for the best

Firem78910: yeah it was but will know about it soon now if you'll excuse me I'm gonna play some more Super Metroid Ja Ne

IRLFirem78910: made some small edits and I've included Toru into the Polyship