Sonic in UNDERTALE

Ng2009

Reads 15
Votes 1
Parts 1
Time <5 mins

Reads 15
Votes 1
Parts 1
Time <5 mins

Ng2009

flowey sans sonic sonicthehedgehog undertale

Sonic the Hedgehog and a human, FRISK, fall down into the UNDERGROUND, a large and out-of-the-way place under a mountain, separated from the rest of the world by a magic wall called the BARRIER.All Rights Reserved

flowey sans sonic sonicthehedgehog undertale

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PROLOGUE
Fri, Aug 16, 2024

1 part

PROLOGUE
Fri, Aug 16, 2024

#623flowey

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sonic ran in a cave to hide his secret and shadow finds out what it is, but what he didnt know what will happen to him.

Is This Real? {Sans x Frisk} [COMPLETE] by MillydaCloudQueen

Frisk is a fallen human girl into the Underground. She meets some very special monsters, but will she meet someone extra special?

An Undertale AU i created... All the characters are overly aggressive(except Flowey) and try to kill every human they see. the last human to fall into the underground is Frisk, and they meet many monsters who initially try to kill them, until Frisk teaches them the benefits of being nice. this takes at the same time as Undertale, but is completely different. it is also similar to horrortale because that is the AU that inspired me. all the characters belong to toby fox The cover art was created by RenSabre

Welcome To EXEVille by GokuStormOfficial

Sonic falls into a portal and gets lost in the world of EXE.

Show off some mercy, human! A human child has fallen down into the underground. Only the chance of leaving is crossing the barrier, the one-way exit of the underground. The human forced theirselves on a journey making friends, giving off mercy, and filling theirselves with determination. The epic tells the entire story of Undertale's Pacifist Run. I am not responsible if you're gone spoiled. SPOILERS ALERT... but I think you know it already...Go ahead.👊👊 This fanfic is fully bound by Canon. Created: 03.25.17

Their ANGEL(og) (Discontinued) by SavageFandomGod

Based around Toby Fox's Undertale all credit goes to him. In this Frisk is your best friend and Asriel was not able to free the monsters completely. He was almost able to break the barrier. Only humans can leave. Will this new person, who has mental issues, be their savior? If you want to know more you will have to read the story.

✔️The 9th human- Undertale x Reader by aesthetic-saihara

Frisk spared everyone. The barrier was broken. All the monsters are free. But you, an 12 year old girl on a hiking trip, fall down. Now that the barrier is broken, no one should be left in the Underground, right? This is my first story, so it might not be too good... still, I hope you like it! Cover made by @Fluffy-Bush

Fallen Child [completed] by skeleta_fella

Frisk has fallen into the tough world of Underfell. She's fallen from her home above, where people knew sign language and understood her. How this happened, even she doesn't understand. Will she be able to make it through the underground being mute, or will she be the truly fallen child? Image by artisticanimal101, and edited by me. Credit to original creators of Underfell. Credit to Toby Fox, the creator of Undertale. The storyline is created by me, please do not steal.

Wisdom. Book 1 (Warning! Contains spoilers of Undertale! kinda...) by Sad_Ghost_Blooky22

A human falls into the Underground while playing the game Undertale. Along the way, almost everything seems normal. But, after the fight with Doggo, before you know it, they are teleported to a white abyss, and that's where things REALLY take off.

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