Undertale Yellow

For the track, see Undertale Yellow (Soundtrack).

Undertale Yellow
Game Information
Release Date	November 30th, 2016 (demo) December 9th, 2023 (Full game)

Undertale Yellow (stylized in all caps as UNDERTALE YELLOW) is a turn-based role-playing game based on Toby Fox's Undertale, serving as a prequel. The project is led by Master Sword and is developed on GameMaker: Studio.

It is notable for having famous faces behind the game's soundtrack, such as NoteBlock, MyNewSoundtrack, and Master Sword himself. Its first demo has been released on November 30, 2016, and the complete game released on December 9, 2023.

Gameplay

Before the seventh... There was another.

Official Trailer

Undertale Yellow's battle menu is similar to Undertale's, although the knife on the FIGHT icon has been replaced with a gun.

Undertale Yellow reuses some of the vanilla game's mechanics with turn-based rounds and a Fight-Spare system. However, the developers have stated that the game will deviate from Undertale in a few aspects.

One deviation from Undertale, gameplay-wise, is the fight mechanics used. Instead of Undertale's stretched oval attack board, Undertale Yellow uses a circular target attack board. There is a white ring that starts from the outside of the target and quickly moves inward while getting smaller. The closer the circle gets to the middle, the more powerful the attack will be. If the circle gets to the very middle without being stopped, it will be counted as a miss.

Despite the fight mechanic change, the dodging system will stay the same as the original Undertale. Initially, the game's dodging system was going to be based on the Mettaton EX fight, but the ideas were later scrapped.

The Underground has been expanded, with the player being able to explore previously unseen areas throughout the game's locations. The main addition so far is the inclusion of the Dark Ruins, a significantly darker and more damaged layer of the Ruins, containing another exit to Snowdin.

The game also retain's the witty dialogue and narration of the original Undertale, as seen throughout the Dark Ruins and Flowey's commentary. It also features the system of three routes, with the player being able to embark on the Neutral, Pacifist and/or Genocide routes.

Main Story

The game's main plot is the same as that of Undertale, with the war between humans and monsters, and the latter being sealed inside the Underground via a magic barrier. However, it follows the journey of the seventh human that falls into the Underground. This human is a young child named Clover.

An ambiguous amount of years after the war, multiple humans have been rumored to disappear after heading toward Mount Ebott. With a Missing Poster in hand, Clover heads toward the mountain to investigate, and deliberately jumps into the Underground. There, they team up with Flowey and explore the Underground, with Flowey offering to Save for Clover.

Because Flowey is present in the game, it is possible that Undertale Yellow takes place just after the experiments that led to the creation of the Amalgamates. Despite this, Alphys seemingly only makes one appearance in the game. That being in a flashback sequence Martlet has during the Genocide Route.

There is also a timeline for the game which has several events that occur in between the monsters being sealed underground and Clover going into the underground, most of them are likely the other humans falling but some might be new events that could affect the game's plot.

Development

Undertale Yellow started development on February 4, 2016, after Toby Fox greenlit the game's creation. On March 28, the game got itself a Game Jolt page. It would not gain much attention, however, until April 30 when the official trailer for the game was released.

Since then, the game's official Twitter account has been the main place to reveal new information about the game. Months later, on November 30, the first demo for the game was finally released to the public.

The game got several of progress reports after the demo's release, as well as teasers for different areas of the game. On January 17, 2022. the team announced they plan to release the game during the winter of 2022.^{[citation needed]} However, on March 5, 2023, the team announced that they were delaying the release to later in the year as their ambition in the endgame ballooned a lot, requiring a lot more work that would put a strain on development if they tried to rush through it.^{[citation needed]} On September 27, the game was officially feature complete and 2 months later, the release date for the full game was announced as December 9, 2023.

Development Team

Music

• MasterSwordRemix (Director of the game)
• Noteblock
• MyNewSoundtrack
• Figburn

Additional Music

• GlitchedPie
• emBer
• DYLZAL
• Scott Joplin

Programming

• Spasco
• Deadkat
• Mysteryracer

Narrative Design

• MasterSwordRemix
• AWildDayDreamer
• Pippy V.

Dialogue

• MasterSwordRemix
• Pippy V.

Concept Art

• Figburn
• GlitchedPie
• TeleviQ
• Nero Inu
• Gaziter
• InkuNoodle
• Noteblock
• AeroArtwork

Additional Concepts

• Ryla
• MarshieMonarch
• Greeli_
• AWildDaydreamer
• Grey Duovis
• LitvacArt
• Emmalume
• Sweaterbat
• Still Liam

Spritework

• Figburn
• GlitchedPie
• Deadkat
• Gaziter
• AeroArtwork

Additional Spritework

• Vegard Jensen
• Ryla
• Barosaros
• Bloquito
• AWildDaydreamer
• TeleviQ
• Kcadbackwards

Sound Design

• MasterSwordRemix
• Spasco
• Figburn
• GlitchedPie

Trivia

• When Master Sword was asked about how he got the idea for the game, he said that he simply thought of the game and several ideas for it one night, and the next day hurried to find enough people to make it a reality.^{[citation needed]}
• Master Sword has stated no young versions of the main characters from Undertale will appear. He also stated that W. D. Gaster, Sans, Papyrus, and Undyne will not make an appearance in the game.
  • In the full version of the game, the following characters from Undertale make a guest appearance:
    • Toriel and Asgore Dreemurr - both play a minor role in the game
    • Alphys - makes a cameo in the flashback sequence during the Zenith Martlet fight
    • Gerson - might appear in the Dunes during a rare Fun Value event
    • Annoying Dog - might appear in the Steamworks during a rare Fun Value event and sometimes pops out of Bowll's back during battle
    • Heats Flamesman - makes a cameo in Hotland and is mentioned on the "Winners of the ”Actually Magma Smoothie Challenge”" ranking sheet, displayed on a board in the UG Apartments
    • Mettaton - appears on the Wild East news board and is mentioned on the "Winners of the ”Actually Magma Smoothie Challenge”" ranking sheet
    • Napstablook - briefly appears during the flashback sequence at the end of Neutral Route. They are also strongly implied to be the one who wrote the Spam Letter 4
    • Pyrope, Grillby and Fuku Fire - are mentioned on the "Winners of the ”Actually Magma Smoothie Challenge”" ranking sheet
    • Undyne - is mentioned by Ceroba in the Steamworks.
  • Additionally, some unused assets for Sans and Mettaton can be found in the game files.
  • Red from another fangame, UnderTale RED, and Cooper - a character from Undertale Green - also cameo in the game.

External Links

• Game Jolt page
• Twitter
• Reveal trailer
• Snowdin trailer
• Mines trailer