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Sonic in Undertale by
Archaeopteryx108
(This is a work in progress. I own nothing. Sonic is owned by SEGA, and Undertale is a product of Toby Fox.) When a blue hedgehog that can go faster than the speed of sound and a small child fall into a mountain… they will find something quite unexpected… This is a version of the Pacifist Route with Sonic in it. I will upload infrequently. Review if you enjoy!
Crossover - Sonic the Hedgehog & Undertale - Rated: K+ - English - Adventure/Friendship - Chapters: 4 - Words: 3,605 - Favs: 4 - Follows: 3 - Updated: 9/1 - Published: 6/17 - Sonic, Frisk, Chara
New Brotherhood by
1TGN reviews
Two heroes of red and blue from different worlds have lost someone close to them. It was tough for both to deal with the pain. But after another accident occurs, they cross paths in an unexpected situation. These heroes, known as Mario and Sonic, eventually learn about each other and promise to protect themselves from their enemies as they unknowingly form a special bond.
Crossover - Mario & Sonic the Hedgehog - Rated: T - English - Family/Hurt/Comfort - Chapters: 58 - Words: 288,305 - Reviews: 376 - Favs: 137 - Follows: 121 - Updated: 9/1 - Published: 1/24/2017 - Mario, Sonic, Luigi, Tails
Okami: Amaterasu and Tails by
Phantom Fan 21 reviews
What if Tails was next to Amaterasu when she was awoken? What if Tails couldn't remember anything about himself? And what's this? The Celestial Brush Gods call him Father Kitsune? Follow the tale of both Amaterasu and Tails as they save Nippon from the dark forces and recover Tails's memories. Also, Amaterasu is female in this story. (TailsXAmaterasu) Book 1.
Crossover - Sonic the Hedgehog & Okami - Rated: M - English - Adventure/Spiritual - Chapters: 10 - Words: 26,018 - Reviews: 24 - Favs: 24 - Follows: 21 - Updated: 8/30 - Published: 4/23 - [Tails, Amaterasu] Issun
Dear Maria, by
Have A CalmHeart reviews
Shadow uses a chaos emerald to accidentally transport himself to Equestria. During his time there, Shadow writes letters to his deceased friend and sister about a certain pink pony. Shadow the Hedgehog thought he could never find someone to love as much as her. But, it seems she has sent this person to him. Uh, pony.
Crossover - Sonic the Hedgehog & My Little Pony - Rated: K+ - English - Romance - Chapters: 13 - Words: 30,048 - Reviews: 2 - Favs: 8 - Follows: 6 - Updated: 8/30 - Published: 1/9 - [Shadow, Pinkie Pie]
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 Luhyzi)
Crossover - High School DxD/ハイスクールD×D & Sonic the Hedgehog - Rated: T - English - Chapters: 33 - Words: 257,450 - Reviews: 396 - Favs: 252 - Follows: 259 - Updated: 8/30 - Published: 2/17/2020 - Sonic, H. Issei, Rias G.
Sonic in Deltarune by
Drax69
When Sonic becomes the unwilling test subject of Dr Eggman's newest weapon, he ends up in a world of adventure, magic, comedy, and drama. Said world hides deeper secrets that the blue blur stumbles onto. This is a sort of retelling of Deltarune Chapter 2, but with everyone's favorite blue rat. First story I'm posting here, so I appreciate any criticism and reviews.
Crossover - Sonic the Hedgehog & Deltarune - Rated: T - English - Adventure/Fantasy - Chapters: 12 - Words: 34,025 - Favs: 6 - Follows: 10 - Updated: 8/29 - Published: 12/23/2021 - Sonic, Kris Dreemurr, Ralsei, Susie
The whole Hi Hi Puffy Sonic Multiverse by
Dbroha reviews
Goes in Order of Main 123 Universe - 137 Universe & By the way I take request this and main Canon Material Ami Onkui and Yumi Yoshimura are 14 year old Teenage Rockstar Girls and by the way this is Game Sonic! in main canon and this canon Sonic is 15 year olds Blue Anthropomorphic Hedgehog what happens in the Chapters Are in Chorological Order & multi One-Shots U/Universe it's over
Crossover - Sonic the Hedgehog & Hi Hi Puffy Ami Yumi - Rated: K+ - English - Hurt/Comfort/Friendship - Chapters: 59 - Words: 24,516 - Reviews: 4 - Favs: 5 - Follows: 4 - Updated: 8/29 - Published: 5/7 - Sonic - Complete
Sibling bond by
Dbroha reviews
my brother Sister One Shot collection.
Crossover - Sonic the Hedgehog & American Dragon: Jake Long - Rated: K+ - English - Family/Hurt/Comfort - Chapters: 65 - Words: 20,230 - Reviews: 3 - Favs: 2 - Follows: 2 - Updated: 8/29 - Published: 3/25 - Sonic, Haley - Complete
Avengers: Infinity War (Sonic Style) by
Jacob Marley1991 reviews
Infinite finally makes his move to obtain all the Phantom Gems and the heroes of Mobius and beyond desperately try to stop him
Crossover - Sonic the Hedgehog & Marvel - Rated: T - English - Sci-Fi/Adventure - Chapters: 12 - Words: 22,909 - Reviews: 1 - Updated: 8/29 - Published: 8/19 - Sonic, Shadow, Infinite, Razor - Complete
Genesis by
XenoBeano
A Weird Story idea thats been clanking about in my mind.
Crossover - Super Smash Brothers & Sonic the Hedgehog - Rated: M - English - Romance/Fantasy - Chapters: 2 - Words: 2,806 - Published: 8/28 - Sonic, Mario
Sonic Animeverse by
CPVibe reviews
It's been quite peaceful for our favorite Freedom Fighter, Sonic The Hedgehog. Until a being of pure chaos has been resurrected once again and attempts to take over the multiverse and caused the Chaos Emeralds to scatter across different worlds. Now its up to Sonic and with the help of heroes from other worlds to collect the Emeralds and save the multiverse before its too late.
Crossover - Sonic the Hedgehog & Anime X-overs - Rated: T - English - Adventure/Friendship - Chapters: 2 - Words: 3,488 - Reviews: 3 - Favs: 9 - Follows: 10 - Updated: 8/28 - Published: 3/19/2021 - Sonic, Dragon Ball Z
The 4th NYC Dragon by
Dbroha reviews
I own the oc Dalton Long
Crossover - Sonic the Hedgehog & American Dragon: Jake Long - Rated: K+ - English - Adventure/Supernatural - Chapters: 5 - Words: 1,434 - Reviews: 5 - Favs: 1 - Follows: 1 - Published: 8/27 - Sonic, Haley, Jake, OC - Complete
Sonic and Pibby by
Dbroha reviews
enjoy the cover is by Joneoyvilde03 on DeviantArt
Crossover - Sonic the Hedgehog & Learning with Pibby - Rated: K - English - Adventure/Supernatural - Chapters: 1 - Words: 201 - Reviews: 2 - Favs: 1 - Follows: 1 - Published: 8/27 - Sonic, Pibby - Complete
Pet Bro Duo by
Maya The Turtle reviews
Raph had Spike by his side since he was just a tot, they were inseparable, always alone with each other, and he was the only one who had a pet until one day one of his brothers, the young Michaelangelo came home from exploring their new lair home with a surprise : a tiny baby hedgehog that he calls "Sonic"
Crossover - Teenage Mutant Ninja Turtles & Sonic the Hedgehog - Rated: T - English - Adventure/Drama - Chapters: 1 - Words: 943 - Reviews: 2 - Favs: 2 - Follows: 2 - Published: 8/27 - [Michelangelo, Sonic] [Tails, OC]
Kick Buttowski: Ultimate Daredevil by
Scourge7 reviews
AU: "Ever since my accident one year ago, my life has changed. Now I have to deal with a sassy princess, robots, mutants, aliens, rings, a floating island, and an egg-headed megalomanic. But that won't matter, why? Because I'm Kick Buttowski: Ultimate Daredevil!" A rewrite of the Green Blur of Mellowbrook. Kick with Shadow's powers. Humanized Sonic Characters.
Crossover - Sonic the Hedgehog & Kick Buttowski: Suburban Daredevil - Rated: M - English - Humor/Adventure - Chapters: 2 - Words: 28,195 - Reviews: 2 - Favs: 19 - Follows: 13 - Updated: 8/26 - Published: 5/2
The Entertainer by
Zolth
Sandy is short on cash in her last year in college as she struggles to support herself and help her family back home in Texas. She stumbles upon a job with an old childhood friend working behind a camera and decides to accept it for some fast cash, but her new job ends up causing her more trouble that she even could have imaged.
Crossover - Sonic the Hedgehog & SpongeBob SquarePants - Rated: M - English - Drama/Romance - Chapters: 7 - Words: 17,981 - Follows: 1 - Updated: 8/25 - Published: 8/17 - Shadow, Sandy
My Hero Academia: Deku X by
Pixel's Fanbook reviews
One mysterious emerald grants a young boy a power, a power so ancient that it has been used once in history. Join him and his friends as they journey across high school to become heroes and meet new people that will help him stop the forces of evil. The worlds of Sonic and MHA are one. Soinc characters humanized. Elements of games and shows in it. Harem story. Rated M for Bakugou.
Crossover - Sonic the Hedgehog & My Hero Academia/僕のヒーローアカデミア - Rated: M - English - Adventure/Humor - Chapters: 8 - Words: 56,101 - Reviews: 140 - Favs: 583 - Follows: 617 - Updated: 8/24 - Published: 7/28/2020 - Sonic, Izuku M., Ochako U., Mina A.
Sonic Rainboom: Chaos Within Harmony by
DareDreamer reviews
After major events in their respective worlds, the seven Chaos Emeralds and the six Elements of Harmony collide and cause both Sonic's world and Equestria to go on a collision course! It falls to two speedy blue heroes on the ground and the sky- as well as all their friends- to fix things! But can they do it before both of their worlds are destroyed in the chaos? Piece of cake!
Crossover - Sonic the Hedgehog & My Little Pony - Rated: K+ - English - Adventure/Friendship - Chapters: 24 - Words: 318,035 - Reviews: 66 - Favs: 47 - Follows: 51 - Updated: 8/24 - Published: 7/12/2021 - Sonic, Tails, Twilight Sparkle, Rainbow Dash
Sonic Returns To The Land Before Time by
Tyrone Tyson reviews
Sonic and the dino kids are back! With their old friend Chomper and newcomer Ruby, Sonic and the gang go on more adventures while facing more challenges as well. The gang will have to face their enemies: Red Claw and Dr. Eggman. But they will have to face a new enemy who is from another world similar to the dino world. (LBT TV series)
Crossover - Sonic the Hedgehog & Land Before Time - Rated: K+ - English - Adventure/Friendship - Chapters: 10 - Words: 65,416 - Reviews: 47 - Favs: 14 - Follows: 11 - Updated: 8/24 - Published: 2/23/2020 - Sonic, Littlefoot, Chomper, Ruby
Dead or Alive Ultimate Fighter by
Shadow Joestar reviews
AU. Set in Dead or Alive 5. Kasumi continue her search for her clone Alpha-152 though nothing so far until she was sent by the head of DOATEC, Helena Douglas, to investigate a secret lab and found a young man with the named Shadow being involved in a mysterious project called the Ultimate Lifeform that may change the fate of the world. ShadowxKasumi. Harem. Lemon. Fighting.
Crossover - Sonic the Hedgehog & Dead or Alive - Rated: M - English - Adventure/Romance - Chapters: 12 - Words: 34,592 - Reviews: 37 - Favs: 126 - Follows: 116 - Updated: 8/24 - Published: 3/2/2019 - [Shadow, Kasumi, Mai S., Tina A.]
Not an Egg by
Krieg Schnee reviews
Did someone say Chili-dog? Sonic and his friends find themselves in a new world and wait a minute. Eggman is a girl?
Crossover - Worm & Sonic the Hedgehog - Rated: T - English - Humor - Chapters: 16 - Words: 19,346 - Reviews: 51 - Favs: 139 - Follows: 166 - Updated: 8/24 - Published: 4/19 - Skitter, Sonic, Knuckles, Armsmaster
The Many Masks of Sonic the Hedgehog by
BigRandall
Sonic finds the love of his life in Gotham City but struggles to hold onto her with the tough struggles of his inner torment, losing his path as a hero and having to redeem himself.
Crossover - Sonic the Hedgehog & StarTrek: Voyager - Rated: T - English - Romance/Angst - Chapters: 9 - Words: 2,688 - Published: 8/23 - K. Janeway, Sonic - Complete
Sonic and the Magic Lamp and Chaos Rings by
Theodore the poet reviews
Sonic gets sucked into the Egyptian world, where he learns of his life in Egypt. Now he wonders how to return home. Not only that, but when he must marry the princess, who is Amy, could he be willing to do so? And what can he do once things gets complicated due to among other things, having to fight Erazor. (A retelling of Aladdin with Sonic characters, and a lot of twists.)
Crossover - Sonic the Hedgehog & Misc. Games - Rated: M - English - Romance/Humor - Chapters: 7 - Words: 72,284 - Reviews: 7 - Favs: 18 - Follows: 17 - Updated: 8/22 - Published: 12/25/2021 - [Sonic, Amy, Tails, Cosmo]
Boiling Bloodlust by
Zolth
Sandy, and her twin brother Randy, get carted away by the Electro family in hopes of making money to send back to their family. From the start Sandy found herself untrusting of the rich family, but once at their family castle she realizes her fears about them having nefarious motives were barely even scratching the surface of the families' true evils. Vampire crossover AU.
Crossover - Sonic the Hedgehog & SpongeBob SquarePants - Rated: M - English - Drama/Romance - Chapters: 6 - Words: 12,744 - Published: 8/21 - Shadow, Sandy
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