Undertale x Sonic Crossover - Sonic the Hedgehog - Wattpad

Story cover for Undertale x Sonic Crossover by sonic_the_dj_hedgie

Undertale x Sonic Crossover

sonic_the_dj_hedgie

Reads 2,203
Votes 27
Parts 3
Time <5 mins

Reads 2,203
Votes 27
Parts 3
Time <5 mins

sonic_the_dj_hedgie

child flower flowey intro sonic suffer tails toriel undertale yellow

This story starts off with Tails, the cheerful gold fox we all know. He creates a vortex leading to other universes. Not having the slightest confident to go alone, he calls up his buddy Sonic. They set it to travel to "The Mushroom Kingdom" but the machine has a slight malfunction. Now they end up in another universe, something we all know as "Undertale".
|| W.I.P! Not full story yet! ||
|| I will update this text as soon as I need to ||
|| What I released is just a draft and only will be until I decide and/or have free time to work on it. ||
|| Hopefully if you honestly enjoy it, I'll definitely squeeze more time in c: ! ||
|| Thank you for listening to my ranting ||All Rights Reserved

child flower flowey intro sonic suffer tails toriel undertale yellow

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3 parts

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Universal Surface Angel by Lithriel

Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows of the powers you gained from his experiments... all but one, this one allows you to tear realities just enough to teleport into them. Knowing of Undertale you felt bad for the monsters stuck below in their world and wish to help them, but something goes wrong and you end up going to certain AUs and helping them, gaining the attention of some bad skeletons who now desire your power for them-selfish-selfs.

Reset Reality (Sans x Suicidal Reader) by katzarecoolz

You Decend deeper and deeper, farther away from the surface. Soon reaching the floor, you lie on a patch of flower petals. A yellow flower comes up and introduces him self... Howdy! I'm Flowey, Flowey the flower. Before he could finish his sentence you get up and run To where? You don't know. Hey guys I've never wrote an Undertale story nor have I played the game (tbh I've only really watched memes about it and a few series.) so I don't know much about the characters or the game in general. But I do know some stuff. I guess in a sense this is kinda my own AU but using the general theme of Undertale, Either way I hope you guys enjoy! and leave comments on chapters of ideas or what you would like to see.

Together Fallen (Complete) by KitKatLovesUT

Please- just don't read it- I am fully aware that it stinks, and leave me a PM if you are against the idea of deleting this. The reader, an amazing Undertale fan girl, finds herself and her family together fallen into the world of Undertale in an attempt at a mountain Holiday. The family is awed and amazed at the underground civilization of monsters, until an immense and old evil worms its way into their lives. If you are viewing this content on a platform besides Wattpad, you are likely at risk to a Malware attack. If you wish to view this content in its original, safe form, visit it here: https://www.wattpad.com . Thank you! Spread the word of these copyright violations! Thank you to @Xx_ScorpioRocks_xX and @Hope-Mist for providing me with this information! If you would like more info, visit @Xx_ScorpioRocks_xX

Alter-Verse (Yandere Altertale AU Toriels x Shy Child Reader) by Unidentified562

You grew up in a very abusive household where your parents are alcoholics, drug addicts, low lives, and love to play the victim no matter what. You believe everything that goes wrong is all your fault which is every day. Monsters on the surface have been making things worse for years and they formed gangs, so going outside to play was never an option. One night, you hear something and go out to the kitchen to see a monster raiding your fridge. Tossing bottles of your parent's beer onto the floor since she calls it trash thenshe sees you. You tried to polietly and timidily ask her to stop, but in a drunk rant, she ends up taking you with her to another world on accident, and this is when your whole life changes.

Undertale baby by Bethatree

This is the story of a baby that somehow made it to the underground. Join our little Zoe on a life adventure in finding out about the underground and making friends while also loosing friends. *cough cough* Toriel* cough cough* will she free the monsters from the underground? FIND OUT AND READ ON :D WARNING: this story may contain course language, violence and spoilers. WARNING: you have been warned. -_- Also please wright in the comment if you like my story and if I'm doing something wrong or I could improve on something let me know thank you and please remember to help all those Temmies go to collag so they can make temmie village proud....except for bob I think bob is evil trying to destroy temmie village. *-*

The Adventure Of A Lifetime (Batim, Fnaf, Sonic the hedgehog, and undertale) by gweniverewood61

Alright, this is me and my friend's book. My friend edits on this a lot, and you can tell by the no punctuation marks and misspelling. Things to cover: Rikki the hedgehog is me. (R-I-ck-ee) And my friend Lilly's name is Lemons the hedgehog.- now, don't make fun of her name, because she picked it out, not me. Rikki is Lemons's best friend. Rikki is an 18 year old female hedgehog, Lemons is a 17 year old female hedgehog. this book is about a lot of things, so please read as much as you can, and PLZ comment!! I love to hear people's ideas!! I don't want any haters though. I love you all, so, I hope you like it!! I will put pictures of me and Lemons on here

From Far Lands by TP_Studio

A little Story I was inspired to make. Thanks to my friends, you know who you are ;) -Yes I did make it about Minecraft dungeons. Its underrated. --------------------------- Main Characters: Bendy-Friend Foxy-Friend Wall-Friend Mangle-Friend Leaf-Friend Alastor (and his son Cuphead)-Friend Sonic- Friend Tails- Frenemy Michael- friend/neutral ------------------------------------------- 7 figures wander the blocky landscape, twords a huge fortress at the south of the island. What lies inside its stone walls? WHO lies within them? Perhaps the same young Illager that was destroying the village they had found a few days ago... and in that village is where our story begins. ------------------------------------------------------ ⚠️I do not own Any of the characters in this story, Just some of their Personalities, actions, and What they say.⚠️ (There may or may not be a lot of grammar and spelling errors, I suck a writing.)

WILTED: A Sans X Child Reader Story by Yusuka-chan

[I have decided to do what I always wanted 😄😄]:some people put warnings for these so.....CHILD ABUSE IS DISCUSSED You were, thought to be mute and was horribly abused by your mother and because of the psychological trauma , you can't bring yourself to trust people......youve fallen and you find yourself alone...until a punky skeleton decides to take you in and raise you himself. Maybe this is just what you need and you'll be able to finally warm up to others, or maybe it won't be that easy and there will be struggles along the way. 💖Just as dew refreshes the wilting flower, tenderness restores the grieving heart.💖

Fallen Angel (Gaster x reader) OLD by Feniksiara

OLD AND BADLY WRITTEN THE REWRITE IS POSTED ALREADY DISCLAIMER: The god figure created in this fanfic is purely fictional. He is purposefully made to be prideful and cruel and is not supposed to represent any god. I am religious myself and I did not intend to attack anyones believes with this book. An angel. Sign of hope for humans, yet a nightmare for monsters. Powerful, skilled and...beautiful. But what happens when one rebels against the cruelty towards monsters? What happens when she's banished to the underground, only with wings as a painful reminder of who she once was. What if she's found by the Royal Scientist? What if the nightmare every monster is scared about, is just as broken as they are? And what if she'd find something she would never imagine she'd find in the underground...love? *Cover edited by me. The pictures used in the story belong to their original creators. If any of them aren't okay with them being used, I'll take them down* Started: 21.12.2018 Ended: 22.08.2021 09.03.2019-Number 1 in gaster! 07.02.2020- Number 7 in undertale! 25.02.2020- Number 4 in undertale! 15.04.2020- Number 1 in undertale! 11.10.2020- Number 1 in papyrus! 03.06.2021- Number 80 in fanfiction!

A What Now? A Nightmare X Reader Story by Kitti_alt

HEY there will be cussing in this - you have been warned. This is my first ever Undertale-related thing, and no, there is nothing lewd here. Yes, this is a xreader story, don't sue me. The protagonist (you) isn't the happiest person in the world. You're an outcast, a loner. You lost everything before you were adopted by US!Toriel and made friends with the skelebros and Chara. But even with your new family, life wasn't perfect. One day, your school bullies take it too far... I am doing my best to keep it entirely gender neutral, the pronouns I'm using are they/them, and if I slip up please let me know. You also probably won't see descriptions of yourself very often, and when there are, it will be like, soaked, beaten, bruised, flushed, ect.

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Slide 1 of 10

Universal Surface Angel cover

Reset Reality (Sans x Suicidal Reader) cover

Together Fallen (Complete) cover

Alter-Verse (Yandere Altertale AU Toriels x Shy Child Reader) cover

Undertale baby cover

The Adventure Of A Lifetime (Batim, Fnaf, Sonic the hedgehog, and undertale) cover

From Far Lands cover

WILTED: A Sans X Child Reader Story cover

Fallen Angel (Gaster x reader) OLD cover

A What Now? A Nightmare X Reader Story cover

Universal Surface Angel

Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows of the powers you gained from his experiments... all but one, this one allows you to tear realities just enough to teleport into them. Knowing of Undertale you felt bad for the monsters stuck below in their world and wish to help them, but something goes wrong and you end up going to certain AUs and helping them, gaining the attention of some bad skeletons who now desire your power for them-selfish-selfs.