Authors Note: Hello everyone, this is Sacboy117 here with my first ever fanfiction. This fanfic is going to be a 3-way crossover between Marvel, My Hero Academia and Rooster Teeth. I'm also going to add my own OC's and story ideas including villains, new powers, maybe more. I hope you enjoy this chapter, if you enjoy it, I hope you stay for the ride.

Chapter 1: Let's start from the top one more time

Location: New York City (Earth 32642)

New York, the city that never sleeps. Home to some of the most popular and famous heroes to ever exist. From the Avengers to the Fantastic Four to the X-men, many heroes have gathered and fought in this city. Yet there is always one who sticks out from the rest, one who has time and time again been considered miniscule and not so important in the grand scheme of things. But one adventure soon changed that and his life forever.

"Drop your wallets now!" A small thug said aiming his pistol at a young couple.

"S-stay away from u- "The man is suddenly shoved unto his back as his girlfriend screams. The thug then turns his pistol towards the man ready to fire before suddenly getting pulled up into the air from an unknown figure. The couple then sees the thug webbed up on a light pole before seeing none other than Spider-Man web slinging away as the police show up to her aid and to arrest the thug.

Music Que: I'm Spider-Man (The Amazing Spider-Man 2 Soundtrack)

"Just another for your friendly neighborhood Spider-Man!" He shouts before shooting a web line towards Avengers Tower and web zipping all the way to the peak in order to get a good view of the city.
He then takes of his mask and breathes in, not concerned with anyone seeing his identity. Peter then jumps off and puts his mask on before web slinging off just to get an adrenaline surge.

'Hi, my name is Peter Parker, I was bitten by a radioactive spider at age 14, and for the last 3 years I have been the one and only Spider-Man.' Peter monologues in his head as he swings from a rooftop before parkouring from fire escapes.

'I saved the city from a scientist with octopus arms, fell in love with the girl of my dreams, lost her to….an accident, had to fight my best friend's dad, watched him turn into a monster, yeah I've been through some crazy things. But no matter what, I always find a way to get back up and keep fighting, hell I will find a way to keep fighting, because I'm one of the only people standing between peace and chaos. I. Am. Spider-man.'

Music End

Spidey then notices as buildings start to shake and people down below begin to start panicking. He lands on a building that begins to shake violently, Spidey manages to keep his footing and stays onto the building. "What the hell is going on, who's causing this?" He wonders before getting a call from Nick Fury, the head of Shield.
"Spider-Man, are you there Parker?"
"Y-yeah, yeah I'm here Fury. What is going on with these earthquakes, Magneto messing with the ice caps or is it Galactus shaking our planet like a snow globe." He quips causing Fury to sigh at how he's not taking it seriously.
"Listen wall-crawler, there's been a mass amount of Iso-8 energy radiating from a large, abandoned subway tunnel deep under Midtown. Rumors has it that your old friends, the Sinister Six, are the ones to blame for this mess. I need you to go down and stop them, we don't know what they could do with how much Iso-8 they have in their possession."

"Yeah, yeah, I'm on it. Of course, it would help if you called in any other heroes to help."

"Well I would if they weren't busy dealing with Hydra, The Brotherhood of Mutants and A.I.M., turns out all 3 groups decided to work together and are also on the hunt for Iso-8. I had to call in everyone to help with this, sorry kid but you're on your own till the situation is dealt with. Fury, out." Fury says cutting his transmission.

Spidey sighs before hopping off the building and lands right on a manhole. He steps on it hard causing the top to spin out as he hops in, ready to stop the Sinister Six.

Sometime later in the subway tunnel

"Be careful with that. One fuse out of place or a panel misarranged, and we'll all die!" Dock Ock shouts to Rhino who is carrying a large piece of machinery. The two armored animal-themed villains grumble to themselves before carefully putting the part into a slot which clicks it into place energizing the portal machinery being built.

"Finally, after months of researching and planning, I've finally managed to create a gateway that accesses the multiverse." Doc Ock proudly exclaims causing Rhino to scratch his head at the last word the doctor said.
"Uhm, what's a multi-verse. Is that a new island or something in the Bahamas?"
"No, you idiot. The multiverse is a group of multiple universes. Together, these universes comprise everything that exists: the entirety of space, time, matter, energy, information, anything you could think of exists in the multiverse! Even a world without Spider-man." He says immediately gathering the attention of the rest of the Sinister Six.

Electro then appears from a power cord, "Well I'll be damned Doc, that sounds like the best thing I've ever heard. Just think about it fellas, a world without Spider-man, a world without no stinking Avengers or anyone to stop us. We would be unstoppable!" He says extatically before dodging a blade from Vultures wings.
" As much as you may think, it's not that easy. Whatever world we enter could have someone or something worse than the spider. It's either we get lucky and find a world of weaklings or a whole world with only Spider-man around."
"While your concerns are apparent, they won't be important at all." Doc Ock then turn to Vulture as his arms begin to freely move about setting up the machine. "Osborn has already told me where this portal shall lead us to, it's a world called Remnant, apparently from Osborn's source the heroes of this world are weak and have considerably dated tech compared to our world. They don't even have satellites there." Doc Ock says to Vulture.
Just then Kraven and Osborn appear walking from a sewer tunnel as Norman walks in with a briefcase.
Norman walks up to the controls to the portal before opening the briefcase revealing 5 crystals of Iso-8 and a paper containing the coordinates to Remnant. Norman then places a crystal into the machine before pulling the lever on the console down activating the portal as it starts up. Just then, Kraven hears scuttling coming from one of the sewer tunnels which he walks over to investigate. Suddenly he gets kicked in the chest and sent flying back into a wall knocking him out as Spider-Man emerges from the tunnel.
"Hey, this must be the band rehearsal I heard about. So, who called dibs on playing the drums?" Spidey quips announcing himself to the other members of the 6. Electro then growls before firing electric blasts at Spidey who dodges and shoots a web pellet at Electro blinding him. Spidey web zips over and punches Electro dead in the face before getting tackled by Vulture.
"You annoying nuisance, I can't wait to finish you off for good." Vulture says slamming Spider-Man down into the ground causing him to roll on the floor. Rhino roars and begins to run straight at Spidey who immediately looks up at Vulture and then back to Electro and gets an idea. He then shoots a web line that attaches to Vultures feet and pulls him down right to where Rhino is charging causing him to slam into Vulture.
"Sorry Toomes, I'm not going to go out getting smashed by a zoo animal. Maybe next time." Spidey jokes before webbing himself toward Doc Ock who uses his arms to grab Spidey in mid-air and throw him right to the wall. Electro begins to charge a blast before missing it and hitting the console instead.

"Electro, you fool. Do you know what you have done?!" Osborn yells before hopping on a glider and ramming it straight into Spidey. Suddenly the whole tunnel begins to shake as the portal becomes bigger and bigger before taking Kraven, Electro and Rhino into it causing the portal to get even bigger and swallow more things in the tunnel.
"Damn you, you wall crawling nuisa-"Doc Ock is then slammed in the face with the briefcase as it and Ock are taken into the portal leaving only Peter and Osborn.
"My associate told me a lot about you Peter, what you can do, what you could become, I want to push you to the very breaking point so when I kill you and your family, it'll make things all the better. Ahahaha! Or maybe I should kill Ms. Watson like I killed Gwen just to make the pain of your failure even better! AHAHAHAHAHAHAHAHAAA!" Osborn then goes into a laughing fit as he is taken into the portal, still laughing maniacally.

Peter tries to gain a grip and hold on but then he begins to slip before eventually getting sucked in.
"Sorry Aunt May, looks like I won't be home for DINNERRRR!" He yells before being consumed into the portal as it explodes causing a massive blackout in New York. The only thing that remains is the portal, damaged but unbroken due to the metal used to make it and the console with the Iso-8 crystal, still pulsing with energy as the console showing the energy scales for the portal are blank with only the words, 'Warning: Multiple portals opened across multiverse. Multiple entities have been teleported and transferred from different points in time.' On the screen.

Music Que: Into the Spider-Verse (Spider-Man: Into the Spider-Verse Original Score)

Peter opens his eyes seeing multiple images and things pass around him from images of soldiers in a box canyon to a school full of heroes. Images pass around in his head from the destruction of cities, a black figure activating a red sword, to a girl with red hair and silver eyes creating a blinding light. He then tries to move his body around before hitting something or someone, he then notices a watch right next to his arm and a tech chip which he grabs. He then sees the watch attach to his arm and start flashing as it attaches to Peter's arm and pulses memories all through his brain causing him to scream out as the energy courses through him causing him to lose consciousness. The last thing Peter sees before he passes out is a memory of a man with red eyes, a black armored suit with red highlights and a demon mask walks towards a man wearing a shadowy suit of black.
Peter then loses consciousness as he is thrust out of the portal and into a red forest.

I hope you enjoyed this chapter as much as I did writing it. I have a lot of ideas and plans for where to take this series and I can't wait to show them. But for now, I think I'll keep those secrets to myself.