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Undertale Yellow: Bones & Feathers 🦴 🪶

@utyfeathers.bsky.social

Undertale Yellow: Bones & Feathers is a fan project in the works from @thecodingpro.martlet.lol and @pkplague.bsky.social featuring Martlet and Papyrus, the puzzling duo! Banner by @pokechester.bsky.social

Posts Replies Media

Undertale Yellow: Bones & Feathers 🦴 🪶 @utyfeathers.bsky.social · 06/08/2026

New PFP time, remade with the new sprites by @pkplague.bsky.social !

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Reposted by Undertale Yellow: Bones & Feathers 🦴 🪶

Undertale Yellow @undertaleyellow.bsky.social · 30/07/2026

Undertale Yellow 1.3 is out now 💛 (Patch notes here) gamejolt.com/p/version-1-...

gamejolt.com

Version 1.3 (Patch Notes)

UNDERTALE YELLOW v. 1.3 CHANGELOG ARTWORK REPLACEMENT Sprites that included contributions by a former dev have been remade by our artists: * Martlet...

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Undertale Yellow: Bones & Feathers 🦴 🪶 @utyfeathers.bsky.social · 30/07/2026

In light of the latest update to UTY, we will ensure to use the new martlet sprites in the future!

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Undertale Yellow: Bones & Feathers 🦴 🪶 @utyfeathers.bsky.social · 30/07/2026

Just a tiny little teaser of development progress, we're not dead! #UTY #Martlet #UndertaleYellow

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Undertale Yellow: Bones & Feathers 🦴 🪶 @utyfeathers.bsky.social · 16/03/2026

Hi, sorry it’s been a while since the last update, I’m gonna be honest, the fan games development has been on kind of a hiatus, I’ve been really busy and as a solo developer (plague is only the writer) it’s been- (continued below)

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Undertale Yellow: Bones & Feathers 🦴 🪶 @utyfeathers.bsky.social · 15/07/2025

Mini-quick update!! @pkplague.bsky.social made a new logo for the title screen!!

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Undertale Yellow: Bones & Feathers 🦴 🪶 @utyfeathers.bsky.social · 15/07/2025

We finally have a dev update! Sorry for the big delay in getting an update about the fangame, its very much not dead! We now have a proper title screen for B&F! (Character art used from @/pokechester.bsky.social with permission)

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Reposted by Undertale Yellow: Bones & Feathers 🦴 🪶

💉 PK Plague 🧪 (Comms Open!!) @pkplague.bsky.social · 21/05/2025

Working on this, so would be cool if y'all can spread this around :>

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Undertale Yellow: Bones & Feathers 🦴 🪶 @utyfeathers.bsky.social · 21/05/2025

What's Bones & Feathers? Bones & Feathers is a fan project currently in-development by @thecodingpro.martlet.lol & @pkplague.bsky.social about Martlet and Papyrus! (1/3, 🧵 Continued)

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