Sonic the Hedgehog Crossovers
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Mario & Sonic Prime by RGGAM reviews
After a battle with Bowser and Dr. Eggman results in the total destruction of the Paradox prism Mario and Sonic are scattered across the universe in worlds they do not exist and worse there is a group called the Chaos council together out to get them now Mario and Sonic must team up with other versions of their pals if Mario and Sonic ever wish to go home
Crossover - Sonic the Hedgehog & Mario - Rated: K+ - English - Friendship/Drama - Chapters: 3 - Words: 11,848 - Reviews: 2 - Favs: 9 - Follows: 9 - Updated: 5h - Published: 12/15/2022 - Sonic, Dr. Robotnik/Dr. Eggman, Mario, Bowser
Cartoon Fight Club 1: Wario vs Knuckles by NostalgiaZone
Wario (Mario's rival) and Knuckles (Sonic's rival) team up in a rivalry of who's best at their game!
Crossover - Sonic the Hedgehog & Mario - Rated: T - English - Chapters: 1 - Words: 1,384 - Published: 11h - Knuckles, Wario - Complete
Surge Story Section by Twilight Master Emerald reviews
As the title suggests, this is a place where Stories of Surge the Tenrec go, mainly one shots, sometimes multi-chapter, all lemons with Surge with various partners... has mainly Adventure time or Sonic the Hedgehog settings to be and since the first chapter has Surge the Tenrec in Ooo, perfect Crossover section starter... lemons galore to be if Atomsk and I focus on this hehe
Crossover - Sonic the Hedgehog & Adventure Time with Finn and Jake - Rated: M - English - Romance/Humor - Chapters: 3 - Words: 30,709 - Reviews: 1 - Favs: 9 - Follows: 10 - Updated: 21h - Published: 12/4/2022 - Surge
Sonic and Eve the Hedgehogs: Speed On Season 3 - When Worlds Collide by Pinkie pie sweets reviews
At the end of the First Episode of Roboticized Eve: Another Genesis Wave has taken place that combines the world of Sonic and Eve, and the world of two other heroes Mega Man and Mega Woman into one by Dr. Eggman and Dr. Wily. Can the pairs of heroes of different worlds work together to set right their worlds.
Crossover - Mega Man & Sonic the Hedgehog - Rated: K - English - Adventure/Drama - Chapters: 8 - Words: 22,621 - Reviews: 19 - Favs: 13 - Follows: 13 - Updated: 22h - Published: 1/1 - Rock, Sonic
Shin Usagi Tensei Persona(Persona4 Sonic) by verifiaman
It should've been easy. Reach into the ether, grab the Hero of Blue, and give him the power of Persona! So how did she get a little rabbit girl! A being of cosmic proportions had it's eyes on Sonic, meaning a certain rabbit and her pet Chao had to save a world that wasn't their own.(Set during Sonic Frontiers.)
Crossover - Sonic the Hedgehog & Persona Series - Rated: T - English - Adventure/Drama - Chapters: 3 - Words: 15,849 - Favs: 1 - Follows: 1 - Updated: 1/8 - Published: 12/31/2023 - Cream/Cheese, Margaret
Mario and Sonic shorts by Angry9guy reviews
a bunch of cute one-shots
Crossover - Sonic the Hedgehog & Mario - Rated: K+ - English - Humor/Family - Chapters: 46 - Words: 7,545 - Reviews: 13 - Favs: 5 - Follows: 5 - Updated: 1/8 - Published: 4/18/2022
PAW Patrol (TAF): Pups Rock! by Leo the Tiger reviews
The PAW Patrol Band gets to be the opening act for Sonic JAM (Sonic the Hedgehog's band), but somebody has vandalized the stage on which they are to perform! Who or what is behind this?
Crossover - Sonic the Hedgehog & PAW Patrol - Rated: K - English - Adventure/Mystery - Chapters: 3 - Words: 4,156 - Reviews: 2 - Favs: 2 - Follows: 2 - Updated: 1/8 - Published: 1/5 - Sonic, Tails, Ryder, Chase - Complete
Harry Potter and the Order of the Pheonix (Sonic Style) by Jacob Marley1991 reviews
As Silver tries to cope with the trauma of last year both Locke, Finitevus and the Ministry begin to make moves against each other
Crossover - Harry Potter & Sonic the Hedgehog - Rated: T - English - Fantasy/Hurt/Comfort - Chapters: 38 - Words: 178,266 - Reviews: 2 - Favs: 2 - Follows: 2 - Updated: 1/7 - Published: 11/28/2023 - Silver, Coral, Razor - Complete
Pocket monsters: the sonic adventures by duel king sonic reviews
A new journey begins for Sonic across the pokemon world and regions. This new path walked by Sonic and his trusted partner raichu, often joined by their friends, contains many challenges, new loyal allies, just as many deadly enemies, a complicated rivarly with Ash Ketchum as well as personal quest of self-discovery and improvement and the pursuit of a dream Sonic never knew he had
Crossover - Pokémon & Sonic the Hedgehog - Rated: T - English - Adventure/Friendship - Chapters: 64 - Words: 280,651 - Reviews: 3 - Favs: 11 - Follows: 8 - Updated: 1/7 - Published: 5/4/2023 - Ash K./Satoshi, Pikachu, Raichu, Sonic
Candy and Chilidogs by TheMotivatedOne reviews
When Sonic visits N-City on a world tour, he doesn't expect much. This was more of a pit stop than anything. Although, on his first night in town, some strange and fun people start showing up. Surely nothing bad can happen, right? ...Right?
Crossover - Sonic the Hedgehog & Magical Girl Raising Project/魔法少女育成計画 - Rated: T - English - Adventure/Fantasy - Chapters: 11 - Words: 17,399 - Reviews: 1 - Favs: 2 - Follows: 2 - Updated: 1/7 - Published: 4/22/2023 - Sonic, Snow White/Koyuki H., La Pucelle/Souta K., Cranberry The Forest Musician
Kingdom Hearts: Final Mix - Blue Blur Edition by FanFicHazza reviews
Chaos reigns as Sonic the Hedgehog's world falls to the Heartless and darkness. The fate of Mobius rests on Sonic's shoulders as he embarks on a thrilling journey across the many worlds to bring back his home. The blue blur teams up with the ever-optimistic Sora, and loveable duo of Donald & Goofy, who are searching for Riku, Kairi and King Mickey. A great tale with a Sega twist.
Crossover - Sonic the Hedgehog & Kingdom Hearts - Rated: T - English - Fantasy/Adventure - Chapters: 24 - Words: 157,763 - Reviews: 13 - Favs: 26 - Follows: 29 - Updated: 1/7 - Published: 10/6/2023 - Sonic, Sora, Riku, Shadow
Forces of Speed by Shadow8Phantom reviews
After failing to save Pyrrha, Ruby Rose suddenly found herself stranded on the world of Mobius. A world in conflict between Eggman's forces and the Resistance, with low chances of returning home. But despite the odds, the silver-eyed girl is determined to not give up. After all: Everything seems more possible with some new friends at your side.
Crossover - Sonic the Hedgehog & RWBY - Rated: T - English - Adventure/Friendship - Chapters: 40 - Words: 176,917 - Reviews: 259 - Favs: 122 - Follows: 147 - Updated: 1/7 - Published: 3/12/2023 - Sonic, Tails, Ruby R.
Sonic X Godzilla by Abed2019 reviews
When an unknown terror emerges in the southern part of the United Federation, it's up to Sonic, his friends, G.U.N and even Eggman to stop it with everything they've got! Can they beat the unbeatable being that is Godzilla!
Crossover - Sonic the Hedgehog & Godzilla - Rated: K+ - English - Drama/Adventure - Chapters: 1 - Words: 959 - Reviews: 1 - Published: 1/7
Ashes in My Wake by Saints-Fan-12 reviews
Sandy's brother is murdered right in front of her by two people claiming to be apart of Ulf Shadow's mercenary group. Her town is razed to the ground as she decides to steal her brother's identity and seek revenge against the man who promised Randy an easier life. Viking AU. Cover by Jediannsolo (Moving to AO3)
Crossover - Sonic the Hedgehog & SpongeBob SquarePants - Rated: T - English - Fantasy/Romance - Chapters: 6 - Words: 2,018 - Reviews: 3 - Favs: 1 - Follows: 2 - Updated: 1/6 - Published: 1/23/2020 - [Shadow, Sandy] OC
Sonic Jewelpet by GoldenLatias6 reviews
A mysterious evil lady has taken over Jewel Land and froze time on Mobius. Amy, Tails, Cream, and Knuckles join forces with the Jewelpets to stop her curse. Especially now that Sonic has merged his body with Emera, a new Jewelpet.
Crossover - Jewelpet/ジュエルペット & Sonic the Hedgehog - Rated: T - English - Fantasy/Friendship - Chapters: 15 - Words: 47,586 - Reviews: 1 - Favs: 1 - Follows: 2 - Updated: 1/5 - Published: 12/6/2023 - Amy, Sonic
Super Brudahz by Baxfam reviews
Based on my old comics called “Super Brudahz”, this takes place between Mario Parties DS and 9 where Kooper (Koopa Kid) goes to middle school.
Crossover - Mario & Sonic the Hedgehog - Rated: T - English - Friendship/Humor - Chapters: 32 - Words: 15,695 - Reviews: 3 - Updated: 1/5 - Published: 2/21/2023 - Kooper, Sonic, Mario
Shadow the Hedgehog of the Colossus by The Dragon Skull reviews
Shadow the Hedgehog was invited to celebrate Christmas with his friends. But it was a holiday he wasn't excited for, as it served as a reminder of Maria's death. Just when he'd learned to accept what happened to her, Eggman reveals a way to bring her back. But in order to do it, he would have to slay sixteen ancient Colossai to rescue Maria's soul. "Inspired by RocketJump's video"
Crossover - Sonic the Hedgehog & Shadow of the Colossus - Rated: K - English - Adventure/Family - Chapters: 17 - Words: 102,214 - Reviews: 2 - Favs: 7 - Follows: 8 - Updated: 1/5 - Published: 5/29/2023 - Shadow, Maria, Agro, Dormin
Mecha Madness by RickRollWriter21
During a battle Eggman, the Super Hedgehogs' use of Chaos Control misfired that sent Sonic and all his friends to a ruined world ravaged by mysterious robots. Now, the Sonic Heroes have to form a shaky alliance with this world's Central Government to find the seven Chaos Emeralds and the Seven Sol Emeralds before Eggman or the Heretics can get their hands on them
Crossover - Sonic the Hedgehog & Goddess of Victory: Nikke - Rated: M - English - Adventure/Drama - Chapters: 3 - Words: 16,838 - Favs: 4 - Follows: 6 - Published: 1/3 - Sonic, Commander, Triangle
Sonic Everwinter by RickRollWriter21
After finally destroying The End, Sonic believed that he would be able to relax before another world ending plot is thrown his way. His wishes are immediately disregarded when both Tails and Eggman detect space-time distortions coming from Cyber Space. Now, Team Sonic has to travel from their world to a new, frozen planet in order to stop Dr. Eggman from finding the cause.
Crossover - Sonic the Hedgehog & Honkai: Star Rail - Rated: T - English - Adventure/Supernatural - Chapters: 2 - Words: 7,796 - Favs: 5 - Follows: 4 - Published: 1/3 - Sonic, Dr. Robotnik/Dr. Eggman, Bronya
Sonic DxD by Bakuganman reviews
After an accident with the Chaos Emeralds, Sonic is transported to another dimension, in a world where Demons and Gods are common. Befriending the Occult Research Club, it's up to them to help Sonic recover the Emeralds and send him home... before power-hungry demons or a certain egg-man finds them first... (Cover Art by Penguin SuperSaiyanGod)
Crossover - High School DxD/ハイスクールD×D & Sonic the Hedgehog - Rated: T - English - Chapters: 47 - Words: 358,064 - Reviews: 521 - Favs: 376 - Follows: 393 - Updated: 1/3 - Published: 2/17/2020 - Sonic, H. Issei, Rias G.
Operation ECLIPSE - Apocrypha and Sidestories by HelenTheMoon
Omakes, sidestories and Apocrypha written by me and others for Operation ECLIPSE. The Sidestories are canon, the rest just for fun. Feel free to submit content yourselves! (I'll credit you, obviously)
Crossover - Sonic the Hedgehog & Mass Effect - Rated: T - English - Chapters: 5 - Words: 7,472 - Favs: 9 - Follows: 5 - Updated: 1/3 - Published: 12/25/2023
Break the Walls Down by Super Saiyan D reviews
In an effort to rid himself of his mortal enemy, Dr. Eggman flings Sonic into another dimension. Stranded, alone, and with no apparent way home, can he survive this strange new world? What adventures await him? Come along and find out.
Crossover - Sonic the Hedgehog & My Little Pony - Rated: T - English - Adventure/Romance - Chapters: 14 - Words: 140,723 - Reviews: 96 - Favs: 156 - Follows: 180 - Updated: 1/2 - Published: 1/26/2018
Chaos Conundrum by Throwing the Shade reviews
A strange mist with mysterious properties appears off the coast of the Mystic Ruins. With the Chaos Emeralds disappearing this could only spell trouble, like always. Thrown into a different world with very different ideals, watch as these Mobians shake up the very logic of this new world, “Gods, Monsters, and Demons? Sounds like my average Friday.” (Platformers are OP)
Crossover - Monster Girl Encyclopedia & Sonic the Hedgehog - Rated: M - English - Adventure/Fantasy - Chapters: 5 - Words: 19,041 - Reviews: 23 - Favs: 71 - Follows: 83 - Updated: 1/2 - Published: 1/29/2023
A Commuter's Journal in a Nebula by IllusionedDrawer64 reviews
"In your own time, feel free on reading about my experiences with the most discussed figures in this journal."
Crossover - Sonic the Hedgehog & Mario - Rated: T - English - Adventure - Chapters: 55 - Words: 85,552 - Reviews: 1 - Favs: 1 - Follows: 1 - Updated: 1/1 - Published: 5/10/2023 - Sonic, Mario, OC
Sonic The Turning Red Hedgehog by Blueflames874 reviews
What happens when Eggman attempts to conquer the earth in Toronto? Can Sonic pull this off with the help of a 17 year old boy and a 13 year old girl and her friends?
Crossover - Sonic the Hedgehog & Turning Red - Rated: K+ - English - Adventure/Friendship - Chapters: 8 - Words: 33,633 - Reviews: 1 - Favs: 3 - Follows: 3 - Updated: 1/1 - Published: 11/8/2022 - Sonic, Meilin L. - Complete
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