(A/N) to whoever may read this, and cringe at the very idea of a crossover between Mha and Sonic. I'm sorry.

I got the idea to write this shit-fest when I saw a particular image on Pinterest. I got ideas, and I thought up a whole concept in my brain. And I just wanted to know what other people would happen to think if I posted this. I'm not sure if people will see this but if they do.

Enjoy.

Station square, 4:42 PM

Izuku woke up to the sound of far away birds squawking in the distance,

He'd figured that he had been dreaming at first, that this was some sort of dream , because whe he blearily peaked his eyes open and saw grand blue sky's and birds flying in V formation and tried to recall anything happening in his previous day that could have led to him lying in the middle of the roof of a building, he got nothing.

So obviously he was still sleeping in his bed and this was all a dream.

So The greenete idly lay there and closed his eyes again, trying his best to block out his made up dream noises of cars, and the chatter of people and their daily citizen- y festivities.

But that didn't work, he just couldn't go back to sleep!

Stupid dream-

Hey wait..

Izuku wasn't sure if you could be tired in a dream or not,(He was pretty sure you couldn't)

Feeling just a little bit more lucid, he blinked his eyes a bit to adjust to the light- no. None of this made sense! This was definitely not a dream! Izuku was absolutely dumbfounded. Why wasn't he laying in his bed? Oh no, he's late for school! He looked up at the sky and could immediately tell it was pretty late.

Not that that even mattered at the moment, he was just sleeping on a roof of some random building not too long ago.

The greenete sat up and got up on his feet and paced in circles. And it took him a minute to properly calm himself. he wasn't in any immediate danger.. so he had no reason to be panicking like this.

All he had to do was figure out what was going on, and then he could just go from there, find his way home, hug his mom, and live his best life.

But that was a little bit of a challenge when he peered down at himself, his eyes widened and he was just about screamed at the top of his lungs.

Just about..

But he didn't, he probably would have if he hadn't been completely shell shocked into silence.

Izuku stood there, absolutely stupefied. In attempt to try convince himself he was hopefully just seeing things, reached up to his face and rubbed at his eyes. Not once. Twice. Three. But four times.

His breathe hitched at the inevitable realization that he hadn't been hallucinating.

Izuku Midoriya was literally looking at what appeared to be stubby green furrish appendages, of course with his signature red shoes on.

He stood there gaping like a fish in complete shock. 'Whats wrong with my body?! W-What happened to me?!!' He internally screamed- the face he was making probably looked ridiculous to any onlookers, which- luckily enough were only birds.

The greenete miserably failed to even out his breathing this time, while stiffly raising his arms to get a look at what might be wrong with them too.

And just like he figured they were also green and covered in furr. Accompanied by his beige hero costume gloves of course. Which strangely enough looked a bit different, said difference being, the cuff of his glove was no longer the same shape it used to be, in fact it was squishy and actually made of fabric this time, kind of looked like Sonics glove-

Izuku got an idea, He was somewhere completely different, and also looked completely different. A kind of different that could be compared to the world popular Sega representative-

Sonic.

So maybe…

Izuku's brows furrowed, no that's impossible. Definitely not.

Unless a quirk- yeah Izuku figured it was the work of someone's quirk- he just hoped his new look wasn't permanent.

His eyes widened once he had another realization.

He's on a roof, his pulse quickened again- the league-The smoke villain Kurogiri! He could teleport people.

Fuck.

Izuku hadn't gotten to know all of their quirks yet, for all he knew one of them did have a quirk that could do this to peoples body's (he could feel short he'd gotten, he honestly didn't know how little sonic characters really were up untill now)

This was bad. The league had might've snuck in while everyone was sleeping, and and separated him from all his friends so they could...

He charged up one for all and got into defense position, and frantically looked everywhere- the villains could have ambushed him at any time he'd been trying to sleep! Maybe they were about to any second now!!

stupid, stupid, stupid!

Izuku spent the next 10 minutes paranoid and overly aware of all sounds and things happening in the area, he eventually did calm down and get a grip of reality. Yes he did now look like a relative of the rabbit child from the Sonic games. Yes he's on a roof.

But what he doest know is, where in the world, is the roof he's standing on, happens to be right now? Because he really hoped it was a roof somewhere in Musutafu Japan.

And he really hoped the warp villain from The League hadn't teleported him somewhere nowhere near his home-

And he was pretty sure he was, much to his disappointment. When he looked around nothing around him looked like any of the things he'd seen at the city he called home did,

And since that was the case he was going to find his way home, and how to transform back into his ordinary look again!

Izuku determinedly set fourth on his newest journey, to find out what the hell has happened to his body and where he is, and why! He marched forward with a heavy step and opened the door that leads into the building- and in the middle of his trudge down the staircase lost the spunk to his step and started walking normally, because honestly he felt ridiculous.

By the time Izuku made it out the building Izuku had lost hope, things where just getting more confusing by the minute. Everyone looked strange- the civilians they looked like the photos of people you'd find in the pre-quirk area.

Izuku sighed quietly before walking along the sidewalk, thinking and mumbling to himself.

4 blocks down down the road and still not a single mutant quirk user in sight! And no one had colourful hair or defining features that could represent a quirk anywhere- it felt almost alien to the greenete.

But if you did look around a little more there are a few other people who looked a bit like him- which made Izuku feel worse.

He was not in his home land anymore.

Definitely not.

Izuku had not once heard of any possible reality shift- or dimension travel quirks..Maybe the league wasn't responsible for his situation then.

Was it possible he was lucid dreaming?

What were the odds that he'd dimension jumped?

He sure hoped not because if he did somehow, then his chances of finding a way back were extremely slim.

But if theoretically he really is in some kind of Sonic universe..then maybe he could go right up to the literal blue blur himself and try to get help... maybe.

The greenete hadn't know much about Sonic, or any of his friends, honestly he could only name like three other characters next to Sonic, he played some of the games before and knew Sonic had a scientist buddy named Tails

...

At least he hoped Tails was a genius scientist who could work with dimension travel stuff.

Because if it so turned out that the bi-tailed fox couldn't get him back home, then Izuku was screwed.

more importantly his whole entire plan depended on weather if they'd agree to help him out- Tails and Sonic might wave him off because they think he'd gone mental, which honestly he wouldn't be surprised if he was.

Izuku could barely believe this was even happening to begin with.

But the whole find Sonic thing was just all one big hypothesis in the making,

for all he knew this was just an extreme lucid dream, and he'd be waking up all cozy tucked into his bed on a Saturday, and he could ignore all his alarms and sleep in for an extra 20 minutes before getting up to go study with Ururaka, and a few other friends of his.

Izuku continued walking for the next 4 hours, his legs were beginning to grow sore, he plopped down onto a nearby bench to rest.

The greenete was devastated, he had no clue where Kachaan, or anyone else was! For all he knew he'd been the only one it this weird city.

Izuku literally remembered saying goodnight to his friends, before going up to his dorm to go to bed. So he has reason to think he might be all alone.

Which terrifyingly enough, he doesn't even have a home, or anybody to go to here when in need. Which was right now, he had absolutely no money on him- he was beginning to get hungry, so to add that all up.

So far he had. No food. No home, or place to stay. And no friends to turn to in sight!

What was he going to do?

Maybe if Izuku was nice enough he could persuade someone into letting him sleep on their couch until he got back on his feat..

Yeah, he could try that later maybe.

But right now one of his main objectives was to find food for himself. He was starving! The greenete decided he'd sit around for a few more minutes before going to find something to quench his hunger

When the time came he felt like getting back up, he'd heard sudden noises from above- when he glanced up curiously, his brow furrowed when he spotted the sight hovering over the central of the city.

..he wasn't sure if he should've been alarmed or not.

it was an airship of some sort. Not incredibly huge, probably size of your average house you'd find in a culdesac.

He warily examined it from his seat, the ship looked like some of those high quality military jets he'd seen in the many videos on the same website he'd found that old All might footage he loved.

He stood up eyes glued to the ship. Alarms were going off in his head as the boy heard panicked shrieks, and civilians immediately backing into building and running away- Izuku stiffened up when he watched dozens of robots get discharged from the ship.

The city was under attack, misspend launched. And guns were fired. he could already see smog rising above the horizon.

"Hunger could wait another time.." Izuku mumbled, before his hero intuition kicked in.

Just like that the boy took of to the central of the city. Where distant screams, explosions rumbled, and a blue menace awaited.

it's kind of short compared to other fics I've read, idk if anyone will like this or not but I'll sure do more if ppl want me to maybe.