Sonic the Hedgehog and Sword Art Online/ソードアート・オンライン Crossovers
Filters
30 | Page 1 2 Next »

The Divine Guardian Prologue by DivineTDG
Worlds collide in The Divine Guardian, an epic story following a renowned private investigator with a secretive past who's fate is more than he bargained for. Follow him from the beginning of the SAO incident and beyond in this massive epic. In the Prologue,we see the very beginning of Mark's journey.
Rated: M - English - Adventure/Sci-Fi - Chapters: 3 - Words: 1,149 - Published: 12/14/2021
Sword Art Online Alicization : Lycoris by MySonicFan reviews
Kirito and Sonic both wake up in a strange world that acts the same as the real world. Once they arrive, they meet a new person who doesn't act like an NPC and acts like a normal person. Join Kirito and Sonic as they explore this new strange world with new and old friends/new enemies to face. Will they return to their world or stay in this world forever?
Rated: T - English - Adventure/Friendship - Chapters: 8 - Words: 86,526 - Reviews: 1 - Favs: 17 - Follows: 13 - Updated: 9/21/2021 - Published: 7/21/2020 - Sonic, Kirito/Kazuto K., Eugeo
Sonic Mania Hollow Fragment by Retro David reviews
After defeating Heathcliff, Sonic and his friends were suddenly still stuck SAO. A massive error causes their skills to return to their original stats and prevents them from teleporting to any floor lower than 76. They must continue upward to Floor 100 to clear the game, while exploring a new place called the Hollow Area with some orange player. Spoilers for SAO Hollow Fragment.
Rated: K+ - English - Chapters: 20 - Words: 36,886 - Reviews: 3 - Favs: 7 - Follows: 6 - Updated: 11/9/2020 - Published: 3/17/2020
Sonic Mania Alicization Fight Against Darkness Part 2 by Retro David
The ultimate story in the crossover between Sonic Mania and Sword Art Online comes to an end. With help from Leafa, Sinon, Team RWBY, Team JNPR, the Chaotix, and friends from ALO, the heroes fight the American players. Will they save the Underworld? Will they save Alice? Will Kirito wake up? And will Sonic and his friends make it home to save South Island from Dr. Robotnik?
Rated: K+ - English - Chapters: 11 - Words: 24,468 - Favs: 7 - Follows: 7 - Updated: 11/5/2020 - Published: 7/11/2020 - Complete
Sword Art Online Alicization: War Of Underworld by MySonicFan reviews
After A Failed Attempt To Kill Him First, Gabriel And The Returning Laughing Coffin Member PoH have both return into the Underworld And Are Stronger Then Ever. Now, The Fate Of The Underworld Rest On 2 Swordsman That Will Do Anything To Protect Their Friends And Humanity Inside The Underworld. Will These Two Save The Underworld Or Die With it?
Rated: T - English - Adventure/Fantasy - Chapters: 47 - Words: 147,461 - Reviews: 15 - Favs: 26 - Follows: 21 - Updated: 9/19/2020 - Published: 10/18/2018 - Sonic, Kirito/Kazuto K., Asuna/Asuna Y., Alice Schuberg
Sword Art Offline by MySonicFan
Let's see what the characters do after the events of Sword Art Online two years ago as they all return back to society.
Rated: T - English - Chapters: 1 - Words: 15,144 - Favs: 7 - Follows: 7 - Published: 7/10/2020 - Sonic, Kirito/Kazuto K., Asuna/Asuna Y., Leafa/Suguha K.
Sword Art Online: Fatal Bullet by MySonicFan reviews
Join Kureha and a newbie as they set a goal to be the best player in GGO of all time. But soon after, The newbie get's a very rare item. A NPC that follow's the owners orders. But soon after, Three players soon appear and were about to attack the newbie. Now, join Kureha, The Newbie, Sonic, Kirito and more as they there journey around GGO.
Rated: T - English - Adventure/Friendship - Chapters: 8 - Words: 31,037 - Reviews: 1 - Favs: 15 - Follows: 13 - Updated: 6/12/2020 - Published: 3/19/2018 - Sonic, Kirito/Kazuto K., OC
Sonic Mania Alicization Fight Against Darkness Part 1 by Retro David reviews
After the defeat of Administrator, Kirito, Sonic, Mighty, and Ray end up in comas. It is up to Tails, Knuckles, Eugeo, and Alice to fight off the forces of darkness and protect Rulid Village. Meanwhile, when Asuna arrives in the Underworld, she attempts to track Kirito down. What will become of the heroes as they fight against darkness?
Rated: K+ - English - Chapters: 12 - Words: 33,561 - Reviews: 13 - Favs: 13 - Follows: 8 - Updated: 1/25/2020 - Published: 10/12/2019 - Complete
Sonic Mania Alicization Part 3 Battle Against the Pontifex by Retro David reviews
The ultimate fight begins between Team Sonic and the Pontifex, Administrator at the top of the central cathedral in the Underworld. Who will be victorious in this epic battle, and will Alice get her memories back?
Rated: K+ - English - Chapters: 4 - Words: 5,910 - Reviews: 2 - Favs: 9 - Follows: 5 - Updated: 5/11/2019 - Published: 4/19/2019
Sonic Mania Alicization Part 2 by Retro David
The story continues in the Underworld as Sonic, Mighty, Ray, Kirito, and Eugeo make it to the Central Cathedral to stop Administrator, free all the Integrity Knights, and collect the remaining 4 Chaos Emeralds and stop the forces of darkness from destroying the realm of humanity. What will become of these heroes as they go up the tower? Spoilers for SAO Season 3
Rated: K+ - English - Chapters: 8 - Words: 18,590 - Favs: 14 - Follows: 7 - Updated: 4/14/2019 - Published: 3/2/2019 - Complete
Sonic Mania Alicization Part 1 by Retro David
A new company known as Rath invents a new full-dive machine called the Soul Translator. Sonic, Mighty, Ray, and Kirito get trapped inside the virtual world of the STL. Meanwhile, Asuna, Tails, and Knuckles, with the help of Team RWBY try to look for them so they can bring them back and save South Island from Robotnik's forces. Spoilers for SAO season 3.
Rated: K+ - English - Chapters: 15 - Words: 41,524 - Favs: 12 - Follows: 10 - Updated: 2/24/2019 - Published: 11/17/2018 - Complete
Sonic Mania Ordinal Scale by Retro David
Spoilers for the SAO movie. A new Augmented Reality device known as the Augma gets released, and Sonic, Kirito, and their friends use it to fight in battles in the new AR game, Ordinal Scale. Then, the nightmare from the death game comes to reality as people lose their memories of SAO. Will Sonic and Kirito bring everyone's memories back?
Rated: K+ - English - Chapters: 12 - Words: 16,569 - Favs: 13 - Follows: 8 - Updated: 10/4/2018 - Published: 9/24/2018 - Sonic, Tails, Kirito/Kazuto K., Asuna/Asuna Y. - Complete
Sonic Mania Mother's Rosario by Retro David reviews
Sonic and Asuna challenge a player named Yuuki to a duel, and then she takes them to a place to ask them a favor. Asuna gets worried about Yuuki when she suddenly logs out. While that's happening, she gets into a fight with her mother and worries about Kirito after that. How will things work out with Asuna, her mother, and Yuuki? Warning: Spoilers for SAO 2.
Rated: K+ - English - Chapters: 7 - Words: 12,788 - Reviews: 1 - Favs: 13 - Follows: 10 - Updated: 9/13/2018 - Published: 9/1/2018 - Complete
Sonic Mania Quest for the Holy Sword by Retro David
Sonic, Kirito, and everyone go on a quest in Jotunheimr in ALO to get the Holy Sword Excalibur to finish the year off. Will they retrieve the legendary sword and save the land of hill giants, and the surface world? Find out in this epic battle to save ALO. Warning: Spoilers for SAO season 2.
Rated: K+ - English - Chapters: 3 - Words: 6,219 - Favs: 11 - Follows: 7 - Updated: 8/26/2018 - Published: 8/23/2018 - Complete
Sword Art Online Alternative GGO by MySonicFan reviews
Joined Sonic, LLENN, M, and more as they compete in Squad Jams. There mission is win Squad Jam along with others in this tournament. Will they win or be eliminated?
Rated: T - English - Adventure/Friendship - Chapters: 12 - Words: 45,023 - Reviews: 5 - Favs: 9 - Follows: 7 - Updated: 8/22/2018 - Published: 5/19/2018 - Sonic - Complete
Sonic Mania The Phantom Bullet by Retro David
Almost a year has passed since SAO was cleared, Sonic, Tails, Knuckles, and Kirito log into the world of Gun Gale Online to investigate an incident involving Death Gun. They all enter the Buller of Bullets along with a new friend named Sinon to investigate. Will they capture Death Gun and bring him in, or will he continue to wreak havoc in the virtual world? Spoilers for SAO 2.
Rated: K+ - English - Chapters: 14 - Words: 29,619 - Favs: 13 - Follows: 8 - Updated: 8/19/2018 - Published: 8/6/2018 - Complete
Sonic Mania The Fairy Realm by Retro David reviews
The sequel to Sonic Into the Virtual Realm. After the death game was cleared, 300 SAO players, including Asuna still haven't woken up. It is known that the incident hasn't ended. When Sonic, Tails, and Kirito get a picture of Asuna from Agil, they travel into the world of Alfheim Online with a new friend, Leafa, to go to the world tree, and rescue Asuna. Warning: Spoilers for SAO 1
Rated: K+ - English - Chapters: 11 - Words: 27,979 - Reviews: 2 - Favs: 12 - Follows: 8 - Updated: 8/5/2018 - Published: 7/26/2018 - Complete
Sonic Mania the Virtual Realm by Retro David reviews
In the classic Sonic world, a few weeks after Sonic Mania Plus, Tails lets Sonic try out the Nervegear and falls into the world of Sword Art Online. When the truth of the game gets announced, he has a motivation to clear it. Sonic must clear every floor with new friends to clear the game and save all of the players. Warning: Contains spoilers for the SAO anime series.
Rated: T - English - Chapters: 18 - Words: 37,674 - Reviews: 4 - Favs: 19 - Follows: 12 - Updated: 7/25/2018 - Published: 7/11/2018 - Sonic, Mighty, Kirito/Kazuto K., Asuna/Asuna Y. - Complete
Sword Art Online VS Accel World VS Sonic The Hedgehog by MySonicFan reviews
Join three series as all of them help one of them get back to their world inside the virtual world and save Yui. What will happen to all of them? Read to find out.
Rated: T - English - Adventure/Friendship - Chapters: 1 - Words: 1,175 - Reviews: 1 - Favs: 11 - Follows: 10 - Published: 4/14/2018 - Sonic, Kirito/Kazuto K., Asuna/Asuna Y.
Sword Art Online: Lost Song by MySonicFan
Join Kirito, Sonic, and friends as they set their adventure inside ALFheim with new friends and new enemies waiting for them. How will their adventure turn out? Read to find out.
Rated: T - English - Adventure/Friendship - Chapters: 1 - Words: 6,712 - Favs: 10 - Follows: 7 - Published: 4/5/2018 - Sonic, Kirito/Kazuto K., Asuna/Asuna Y.
Sword Art Online: Hollow Fragment by MySonicFan reviews
When Kirito and Sonic logged in, They meet a player that was running away from something. Join Sonic and Kirito to there adventure around the world of SAO with old and new friends. (Yes, bed sences will also be in this story.)
Rated: T - English - Adventure/Friendship - Chapters: 1 - Words: 5,149 - Reviews: 3 - Favs: 8 - Follows: 9 - Published: 3/25/2018 - Sonic, Kirito/Kazuto K.
Sonic SAO by deltasanssavespaps reviews
There are many worlds in the multiverse. one contains the many adventures of Sonic the hedgehog. the other contains the adventures Kirrito. but what would happen if those two people were one and the same? this is their story
Rated: T - English - Adventure/Humor - Chapters: 2 - Words: 7,743 - Reviews: 5 - Favs: 5 - Follows: 4 - Updated: 3/11/2018 - Published: 3/3/2018
Sword Art Online: Hollow Realization by MySonicFan
Join Kirito, Sonic and friends on their adventure inside a new virtual game. On there adventure, they will encounter enemies, bosses, new friends, etc. How will there adventure go as they advance. Read to find out
Rated: T - English - Adventure/Friendship - Chapters: 1 - Words: 4,648 - Favs: 8 - Follows: 8 - Published: 2/22/2018 - Sonic, Kirito/Kazuto K., Asuna/Asuna Y.
Sword Art Online Ordinal Scale: 4 Years Later by MySonicFan reviews
4 Years have passed since the SAO incident. Now, Sonic and Kirito are back together as they are in a new virtual world called Augma. But things turn as Sonic join's someone else that is dangerous to the other players. Now it's up to Kirito and Friends as they try to stop Eiji from Sonic. Will they get Sonic back or will he be with Niji for the rest of his life? Read to find out.
Rated: T - English - Adventure/Friendship - Chapters: 4 - Words: 22,748 - Reviews: 4 - Favs: 14 - Follows: 11 - Updated: 2/12/2018 - Published: 2/6/2018 - Sonic, Kirito/Kazuto K., Asuna/Asuna Y. - Complete
Sword Art Online 2: Back To The Virtual World by MySonicFan reviews
A year after escaping SAO, Kazuto and Sonic have been back to the real world. But once they heard a incident in a game called Gun Gale Online. They soon hear a player name Death Gun has been killing people according to the investigators. Now, it's up too Kirito and Sonic to log into the game to stop the killer with a little help with a player inside the game.
Rated: T - English - Adventure/Friendship - Chapters: 24 - Words: 80,313 - Reviews: 8 - Favs: 21 - Follows: 18 - Updated: 2/4/2018 - Published: 11/28/2017 - Sonic, Kirito/Kazuto K., Sinon/Shino A. - Complete
30 | Page 1 2 Next »