Sonic the Hedgehog, a franchise with plenty of debated Eras and even more Continuities, some far more dangerous then others for an isekai victim as human as the egg-headed main antagonist himself with no super-intelligence or cheats or systems to speak of. Just meta-knowledge, lots of it, and by extension, plenty he can do with it. Sonic Films? Fine. Sonic X, Boom, and Prime? Manageable. Gameverse? Dicey, but doable. Archie and Fleetway Comics? No thanks. Sonic SatAM and Underground? Better than dealing with any EXEs, still wouldn't even if his second life depended on it. Shame that he has no choice in the matter. At least he can decide what to do after the fact, make the most of this situation he's stuck in. So what to do then? Join GUN? As if. Go the Chris Thorndyke route? Pass. Babysit the cinnamon roll-haired hologram that got carried along for the ride? Meta supposes that, exploiting plot holes aplenty, and causing chaos for all things canon will have to do.

Ok so Isekai am I right? The idea of going into a fictional world sounds bizzare sure, but getting Isekai'd only to get Isekai'd while in that Isekai is just confusing at this point. Still, it's different this time. You don't have your original body. In a world full of Quirks, corruption, and conspiracies that only you know about, what do you do when you find out you've taken over the body of the main character? And what do you do when you find out the show- no, the world you thought you knew so well had been altered to it's core? Ok then Y/N, let's see how you deal with the story of My Hero Academia. TLDR: Yar Fucked

My Hero Academia, the shounen world where any problem, no matter how complex and morally debatable it is, can be solved with a Detroit Smash... except not really. Defeating the bad guys doesn't solve the issues that created them, and there's no way hero society is truly recovering from the absolute mess it's dug itself into over the last few centuries, so when a transmigrator is (forcefully) given the chance to enter U.A. High School alongside the main cast and help beat up, among many others, the League of Villains, Meta Liberation Army, Creature Rejection Clan, HPSC, Shie Hassaikai, Humarise, and the centuries-old demon lord LARPer himself, his response is simple and straight to the point. "Are you nuts?! Screw that! I've got a few years tops until Quirk Singularity Doomsday wrecks the world and I'm preparing for it!"

Okay, think of the monster from Carrion (if you haven't played it, you definitely should) and make it into a hyperintelligent monster that cosplays as an anime boy

In humanity's darkest hour, overrun by monsters, twelve heroes emerged as saviors. But there was another, the true hero: the thirteenth, the strongest of them all despite carrying numerous disadvantages. Though he was known to have sacrificed himself in the final battle to save his comrades, the reality was harsher. Betrayed by those he fought beside, he was imprisoned in the Tower, his achievements deprived from him. Meanwhile, his twelve former allies relished in their newfound fame and fortune, built upon the achievements that were supposed to be his. Twenty years later, the thirteenth hero returned, disrupting the peaceful lives of his former friends. All Rights Reserved Written by SAN.G. ⓒ SAN.G, Wuxiaworld, NaughtyOtter / BIFROST 2021

I traveled to the world of Overlord, only to discover that the game Yggdrasil was on the brink of shutdown. What was I supposed to do if my application to join Ainz Ooal Gown failed? Kael didn't panic. Instead, he spent three years within Yggdrasil, repeatedly synthesizing several World Items-specifically, Thermal Stones-and petitioned the game operators to create a unique plugin item. This item allowed Kael to form contracts with selected players, granting them rare professions or even changing their race once certain conditions were met. And then, Kael successfully descended into the New World. Now, how much of an impact will his arrival have on the destiny of this world? Will the nations of humanity continue down the path of their doomed fate? How will the True Dragon King, the strongest warrior in the world, respond? And most importantly... Can the Great Tomb of Nazarick still be defeated?

You are an immortal who seen it all, the start of creation, the birth of humans and even some "Scp" and all the wars plus the crazy humanity endings. You were just having a cup of tea, sitting on the moon relaxing when all of a sudden men and women wearing black versions of space suits with modified weapons got the jump on you and knocked you out. You woke up in a concrete room with one-way glass, you sigh as you know you just got roped into a new adventure, somehow. I made this for my own amusement, so this might not be good as others but its funny.

A terrorist that released a man-made virus, which killed more than 100 million people, was captured and sentenced to death. Death is supposed to be the end of one's story, but the searing heat from the sun and the feeling of a forest proved that wrong. He wakes up to find himself in a body of an orphan in a cultivation world called "Murim". In front of him is a holographic panel that says: ------------------ The host has met all conditions to unlock the virus system. ------------------ Using the system, he can become stronger by releasing viruses that infect people. Cultivation base? That can be obtained through infecting or killing people. Techniques and knowledge? Those can be obtained from the ones he infected. A selfish man with a system befitting his achievements, watch as he turns the entire Murim upside down using Virus Cultivation. ----------- Original Novel