Sonic in Undertale - ZairaDrayan - Wattpad

Sonic in Undertale

Reads 2,275
Votes 78
Parts 17
Time 3h 28m

Reads 2,275
Votes 78
Parts 17
Time 3h 28m

adventure betrayal chara crossover determination fanfiction fate genocide humor lily notmyoc pacifist papyrus sans sega shadow shadowthehedgehog skeleton sonic sonicthehedgehog timeline tobyfox toriel undertale unfinished

Sonic and Shadow fall into a hole and pass through the barrier that Shadow had made to seal away the monsters of the Underground. It is then that they meet everyone in Undertale after the pacifist events. It's just that after being exposed to the chaos emeralds has made them forget about when the human saved them all and are repeating what they did in the original game all over again! Can Sonic and Shadow make it back to the surface alive or at all?

Front picture created by: LilyEsmeraldFox!!!! @LilyEsmeraldFoxAll Rights Reserved

adventure betrayal chara crossover determination fanfiction fate genocide humor lily notmyoc pacifist papyrus sans sega shadow shadowthehedgehog skeleton sonic sonicthehedgehog timeline tobyfox toriel undertale unfinished

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17 parts

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When Two Become One by BibleBubba20

Something odd is happening to both Sonic and Blaze's worlds... They appear to be coming together. They must solve the mystery of the Chaos and Sol Emeralds before "the greatest evil" takes control of both worlds.

You and I (Shadaze) by Akshee4

"What are we?" "I don't know." "Neither do i." "You are playing with fire." ------------------------------------ Things turned upside down at Broken Arrow High when Shadow the Hedgehog, or named as Shadow Hunter, returns back. His arch nemesis, Blaze the Cat, named as Blaze Miller, is extremely flustered by his arrival. Despite the fact they absolutely can't stand each other, they reside in the same locality, as neighbours. Sometimes they're on the verge to kill each other and other times they can't keep their hands off each other. Will they realise their true feelings beyond the sea of hatred and competition? Or will they let the sparks between them die due to their ego? Things aren't going to be easy though as their deepest and darkest secrets and pasts will unleash in front of one another. ------------------------------------ Disclaimer: I do not own any (most) characters. They belong to Sega. All pictures are from Pinterest and/or Google. If the owner wants me to remove any pictures, I will do so. And all song lyrics(if any) are from their respective singer. Warning: This story contains strong language, use of substances, self-harm, childhood trauma, mild to (slightly)intense flirting, detailed description of certain scenes and alcohol consumption. Enjoy!!

|Shadow X - Reminiscent| (ongoing) by Miako83

|Sonic's POV|: There is something about Shadow that has changed, like he is a completely different person. He doesn't remember us, me, nor Eggman. Then, who could have been behind all this? There is nothing that I can't possibly do- but he's warning me, so I gotta run... ... Awakened in the human world that Shadow used to know, he ventures in pursuit of knowledge about his past. He is to trust his considered allies or join their enemy's team once again. Two minds but one heart-which side will Shadow choose? The Ultimate life is slowly losing its grip on itself; a victim to manipulation. What will it take for a certain blue hedgehog to save Shadow's misled mind from an evil villain's control? Will Shadow live to forget again?

Sonic Ultimate - Volume 2 - Shadows of the Past by FeliciaMasonUltimate

Project Shadow. A life form meant for the betterment of mankind, yet the cause of so much pain and loss. Dr Eggman has found his grandfather's masterpiece and has used it as a means to conquer the world with his brand-new Egg Fleet! Until Sonic breaks the device containing it, along with the Master Emerald. From the wake of the Egg Fleet's destruction, Shadow the Hedgehog, has awakened. Along with the god of an ancient culture, Chaos. Now GUN, the world's military, is after Shadow, Eggman is after the Chaos Emeralds, and Chaos themself is uncontrollable, will Sonic be able to save the world from impending doom, and uncover the secrets of Project shadow?

Not as bad by atotalynormalperson

When sonic and shadow stopped the space colony ark from colliding with earth shadow failed to make it out with sonic and ended up falling to earth. As sonic starts to feel that it was his fault he couldn't reach shadow in time he meets an unexpected someone in the forest but injures his leg and isnt able to run, what gonna happen to our hero? Find all that out in my story! If you do not like anything that involves some foul language,violence or anything gay like then dont read it or do i dont care. ENJOY!

Sonic: Chaos Reanimated by syner12

Sonic losts the battle against Dark gaia, and the world falls into chaos. Now, the undead roam the streets, monsters emerge from the ground, old heroes are unrecognizable and lost. Team dark, seemingly being unaffected still, find hope in a small seedrian girl who claims to know how to stop the apocalypse.

Sonic Boom.EXE?! by Keira1706_

⚠️WARNING⚠️ This book contains death, gore, violence, foul language and emotional scenes. VIEWER DISCRETION IS ADVISED! If you are sensitive to ANY of these, I suggest you click off IMMEDIATELY. You have been warned! It is highly advisable to NOT read this story if you are under the age of 15! === Life seemed normal for Sonic and his friends on the peaceful Seaside Island since the anomaly occurrence, that is, until an unexpected event occurred that caused Sonic to spiral into the control that wasn't his own... === Most Impressive Ranking from the Past: 3rd under "sonicexe". Current Reads: 6k+ Current Votes: 100+ === The idea of the story is mine. However, I do NOT own the Characters of Sonic Boom or Sonic.Exe. Sonic Boom belongs to SEGA, SEGA of America and OuiDo!/Technicolor Animations. The Sonic.Exe creepypasta belongs to its respective owner(s). This is only a fan made story uploaded for fun and entertainment. No profit is made from this.

ShadAmy: Return To Darkness by TayReBaby

After sixteen years, Mephiles has returned. Darker and more power hungry...after failing to defeat and kill Shadow, Sonic and the rest of the gang, he Is going to make sure he gets what he wants this time, by using the power of the chaos emeralds,He infects Shadow with a rabies like disease, called Muskiomal which makes Shadow a ruthless cannabalsitic killer at nightfall. Not only does Mephiles turn Shadow into a killer hedgehog, he forces him to take out revenge on not only on on Mobians but the entire universe as well. But only Amy Rose is aware of Shadow's illness after witnessing Shadow consuming human and Mobian remains behind a restaurant dumpster. Amy vows to keep Shadow's condition a secret not only for the safety of Sonic and the gang but for the universe...but if G.U.N finds out the ultimate life form and their top agent as dangerous... it could result in him being held captive, being detained against his will and experimented on as long as possible. Despite the life threatening situation, Shadow and Amy's connection grows closer and closer which ultimately leads to them having an affair which eventually leads them to being together, much to the disdain of not only Sonic, but to the entire group, unfortunately, it later becomes a weakness which will give Mephiles a possible one up against the team Will Amy and the rest of the crew find a cure for Shadow's condition or will he forever be Mephiles' murderous puppet? (All characters and images used belong to SEGA and their rightful owners.)

SONIC FALLS: SEASON 1 [up for adoption] by AndrewGeorge177

after dr eggman triggered an explosion causing chaos control sonic, his friends and his arch nemesis eggman all get transported on earth with them being seperated. but sooner or later sonic will meet two kid human twins mabel and dipper pines as sonic becomes friends with them as he and the twins get sent to gravity falls to spend the summer with the twins's eccentric great uncle stan AKA grunkle stan. sonic with his new humans friends and the rest of his friends they will discover crazy mysterious, fight dinosaurs, battle eggman time to time and will face dangerous threats and save the town and the entire world a few times. sonic and his friends are in for a crazy and amazing summer in the town named GRAVITY FALLS!

The Loss of Gold (Sonadow) - Completed by betheyes

Summary: In the midst of the battle, Sonic calls upon Silver and Shadow to help him defeat their enemy. The seven chaos emeralds are there and react to two of them but one hedgehog finds themselves in quite the predicament. He doesn't glow, instead he is driven to his knees in agony facing demons like no other before. A darkness is coming to all the zones and our heroes are left questioning the past, present and future. Allies like no other come from afar as our heroes are forced through painful paths to save their home. Warnings: Violence, Torture, Use of Swearing, Use of weapons - guns Blood, Gore, Male Pregnancy, Medical Experiments, Death, Miscarriage, Alien Language (Bold), Carnivore Female x Female, Male x Male, Female x Male --> DON'T LIKE, DON'T READ! = SIMPLE! ALL CHARACTERS BELONG TO THEIR RIGHTFUL OWNERS - SEGA - HAVE BEEN USED PURPOSELY FOR FANFIC (Maybe a couple original characters - but not many) Black Arms Language will be in BOLD Started: 03/05/2023 Finished: 09/10/2023

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Slide 1 of 10

When Two Become One cover

You and I (Shadaze) cover

|Shadow X - Reminiscent| (ongoing) cover

Sonic Ultimate - Volume 2 - Shadows of the Past cover

Not as bad cover

Sonic: Chaos Reanimated cover

Sonic Boom.EXE?! cover

ShadAmy: Return To Darkness cover

SONIC FALLS: SEASON 1 [up for adoption] cover

The Loss of Gold (Sonadow) - Completed cover

When Two Become One

Something odd is happening to both Sonic and Blaze's worlds... They appear to be coming together. They must solve the mystery of the Chaos and Sol Emeralds before "the greatest evil" takes control of both worlds.