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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 16/09/2026

Happy Aniversrsy to UnderTale! It has been 1 years! More unused contents on the way

Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 17/08/2026

After years of searching, we have finally unveiled the ORIGINAL concept art behind Sands and Papayas! It's okay I guess. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 28/07/2026

A sprite of an unknown object was discovered in DELTARUNE Chapter 5 patch v0.0.250, could this be the dreaded creature? #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 24/07/2026

It seems like the song Flower Man was supposed to have vocals, but they were removed shortly before release. Fortunately, we were able to recover a short WIP posted on an anonymous filesharing site that shows us how this song could have originally been! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 20/07/2026

A screenshot from an unused version of Seth and Green's break, it looks like they were going to engage in an argument about video's games. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 20/07/2026

We will start posting content from DELTARUNE Chapter 5 starting today, if you have not played the game, please run away as quickly as you can. They can sense protein...

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 07/07/2026

In the data file for DELTARUNE Chapter 3, we found an unused room containing a scrapped interaction, it seems like this is where Homor Sympton's sidequest would begin. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 24/06/2026

Do you hear that? DELTA RUNE Chapter 4... wait that one already out sorry

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 16/06/2026

An early test build of DELTARUNE Chapter 3 containing an unused design for The Roaring Knight has leaked online, no other changes were noted. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 13/06/2026

With the upcoming release of DELTARUNE Chapter 5, we would just like to state in advance that we will be waiting until around a month after the game's release to post anything containing spoilers. That is all, happy gaster scary friday

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Reposted by Unused UNDERTALE/DELTARUNE Content

tobyfox @tobyfox.undertale.com · 09/06/2026

Sorry to keep you waiting! DELTARUNE Chapter 5 will be released on June 24th at 11:00AM EDT. Here's the trailer if you missed it! www.youtube.com/watch?v=n5y2...

youtube.com

DELTARUNE – Nintendo Direct 6.9.2026

YouTube video by Nintendo of America

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 02/06/2026

Found undertale gaster ending special secret... explode sun? what? uh oh... #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 26/05/2026

The trailer for DELTARUNE Chapter 5 has leaked online, beware of spoiler! Here is the entire video so you know what it looks like and you can avoid it at all costs. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 05/05/2026

According to an unused website graphic, Toby Fox may have originally planned for just a few chapters before ending the game. When asked for comment, Tony smiled and nodded #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 27/03/2026

Welcome to the FIRST EVER Gaster Fridays! Every week we Gaster it up!! YEAH!!!! YES!!!!!!! Since this is the first one, the first Gaster Friday, we gotta cool Gaster with his thumb. Yeah! It's . Gasters? Let us know #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 22/03/2026

In DELTARUNE Chapter 2, K_K states that he wishes to be a car. While some may see this as a one-off joke, there was actually an extremely rare chance that this wish would be granted in the next room. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 20/03/2026

A lot of people were asking for the music from the last post, so by popular demand, we upload Jackenstein Music. It's beta versions, so enjoy! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 20/03/2026

In the Switch 2 version of DELTARUNE, we discovered a scrapped anti-cheat feature for Jackenstein's Fight. The feature kills you and bricks your console, we just lost everything, this Really Scary Footage is the only thing we were able to recover... #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 06/03/2026

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 17/02/2026

In 2016, the user "Bony Socks" posted on the UNDERDALE Forums about an upcoming Halloween Update for the game, with two teaser images alongside it. Both files were thought to be lost, but thanks to an anonymous source, we can now preserve them in full HD! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 16/02/2026

We have made another discovery about DELTARUNE Chapter 2! Looks like an enemy named Robliox I think #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 31/01/2026

In the first version of DELTARUNE Chapter 2, an audio file by the name of "spamtonclassical" could be found in the game's data. Information about the file is scarce, and it seems nobody tried ripping it before, so we took it upon ourselves. Please enjoy! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 24/01/2026

Welcome to the FIRST EVER Gaster Fridays! Every week we... aw man, whatever, forget about it...

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 26/12/2025

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 04/12/2025

In a pre-release build of Chapter 4, if you were to return to the Great Door just before going off to confront the Knight, you would have been able to catch a glimpse of a unique darkner. Strangely, it seems this is the only difference from the regular game. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 05/11/2025

After decades of searching, we have found the EXTENDED original concept art for Mr. (Ant) Tenna! Looking good buddy...! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 18/10/2025

We have found an unused scenario for Papyrus' battle, in which two enemies, "P-1" and "P-2" would come to aid him! If you try to ACT or FIGHT either of them, the game crashes, so we only have this screenshot. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 05/10/2025

Welcome to the FIRST EVER Gusters Sunday! Tag a friend and celebrates! when did you start being your Gasters? let us know in reply it up down below #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 03/10/2025

It's our account's 4 year anniversary! To celebrate this and the Halloween season, we'll be posting this EXCLUSIVE artwork of "Witch," which was removed from the UNDERTALE Kickstarter! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 21/09/2025

COOL BREAKING NEWS LIVE: Toby Fox has just shown off a new fight for Scary Neutral Dummy in the special 10th Anniversary Stream of UNDERTALE! Please take a look. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 08/09/2025

We apologize for the lack of special posts, we have been playing Hollow Knight: Silksong. Look forward this friday to something "Certifyed new ande fresh!" IT'S AFTER ME!!!!!! HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 02/09/2025

In a pre-release patch of DELTARUNE, an early version of Tenna's pre-battle cutscene in Chapter 3 shows a scrapped easter egg where a scary clone would take his place. When asked about it, Mr. Tenna said something about our house we couldn't quite make out. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 02/09/2025

Today Toby Fox released a new update for UNDERTALE on a private scary Steam branch that has added many new areas and endings. There is a funny guy #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 23/08/2025

Undertale? Aw yeah, okay, I think I getting the hang of this! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 08/08/2025

Welcome to the FIRST EVER Guaster Fridays! Every week we it up!! YEAH!!!! YES!!!!!!! Since this is the first one, the third fifth Friday, we gotta cool Guaster with his thumb. Uh oh! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 01/08/2025

Welcome to the FIRST EVER Gaster Fridays! Every week we Gaster it up!! YEAH!!!! YES!!!!!!! Since this is the first one, the first Gaster Friday, we found Gaster's commercial! Gasters? Let us know how you think. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 26/07/2025

We generally don't like to break character on this account, but I think it's reasonable to clarify that we are not related to any other UT/DR Beta/Unused Content themed projects or accounts. We're a team of independent artists that are all mostly inactive in the larger UT/DR community.

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 25/07/2025

Welcome to the FIRST EVER Gaster Fridays! Every week we Gaster it up!! YEAH!!!! YES!!!!!!! Since this is the first one, the first Gaster Friday, we gotta secret Gaster. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 22/07/2025

Welcome to the FIRST EVER Fridays! Every week we it up!! YEAH!!!! YES!!!!!!! Since this is the first one, the third fifth Friday, we gotta cool with his thumb. Yeah! It's up. ? Let us know Its Multiplyeing #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 08/07/2025

In a Nintendo magazine advertising DELTARUNE for the Switch 2, we noticed a screenshot that appeared to contain details relating to a scrapped character and their quest-line. We have scanned this image using an ability, so please take a look for yourself! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 04/07/2025

Welcome to the FIRST EVER Gaster Fridays! Every week we Gaster it up!! YEAH!!!! YES!!!!!!! Since this is the first one, the first Gaster Friday, we gotta cool gaster with his thumb. It's up. Wait, don't. Wait... don't!!! Let us know how you think. #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 02/07/2025

In an abandoned laptop we found lyeing around, we were able to gain access to a private testing build of DELTARUNE Chapter 5. Here is what we've found so far by searching the "vid" subfolder! #UNDERTALE #DELTARUNE

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Unused UNDERTALE/DELTARUNE Content @undertalebeta.bsky.social · 25/06/2025

In untested PC builds of DELTARUNE Chapter 4, Kris's "OldMan" ACT would change its description (and name under certain conditions) if you waited for prolonged periods of time. Screenshot 1 - after 24 hours of waiting Screenshot 2 - after 48 hours of waiting #UNDERTALE #DELTARUNE

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