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Deltarune developers

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(Redirected from Audrey Waner)
For the track that plays in the credits for Chapter 1, see Don't Forget.
For the track that plays in the credits for Chapters 2 and 3, see Until Next Time.
For the track that plays in the credits for Chapter 4, see Neverending Night.

The developers of Deltarune are the people responsible for creating the game. Due to its length and complexity, Deltarune has a much larger development team than Undertale. It consists of both a team working on the game full-time, and several "guest" artists and programmers sporadically contributing.

Development leads

Toby Fox

Toby Fox is the lead developer, writer, and composer of Deltarune. He is best known for creating the 2015 game Undertale, to which Deltarune is considered a "parallel story". His plan for Deltarune predates the creation of Undertale since 2011 as a sickness-induced dream that depicts an ending.[3] He had developed Chapter 1 by himself, but realized it would be impossible to create Deltarune without a full development team.[4]

Toby composes the vast majority of his games' soundtracks. He originally composed many of his songs on the piano first until 2016.[5] Toby was self-taught on playing the piano, and admits that his wrist pains may have been due to not learning the proper technique.[6][7] He uses FL Studio to create his music, and the metadata of some song files shows the specific version to be FL Studio 10,[8] which he has been using since 2011.[9]

During Chapter 1's development, Toby had begun seriously learning Japanese to further help Keiko Fukuichi with smoother translations, and occasionally offered ideas such as first person pronouns.[10] He had initially thought it was too hard to learn Japanese, though since learning it, has enjoyed using it every day from 2019 onwards.[11] Despite Toby's involvement in the Japanese translation, he apparently considers his input as a reference.[12] As of Chapter 5's development, Toby also helps with translating jokes by offering annotations.[13] He has expressed an interest in translating in other languages if he is able to translate similarly to how he has done with Japanese, but admits it is not possible at this time for Deltarune.[14]

Toby uses MS Paint to create graphics and concept art,[15] including for the official Newsletter.[16]

As of September 2020, Toby explained how other team members were involved with programming, and that he was suffering from a disability in his wrist that was impeding development.[17] Due to his wrist issues, he no longer directly does programming for Deltarune as of 2025, though he will sometimes verbally tell someone how something should be coded.[18]

When Toby needs to explain the story of a Chapter to the Deltarune team, he apparently acts out the entire script of the Chapter himself, doing character voices and playing the appropriate music for each scene.[19][20] Whenever Temmie is unsure of what Toby wants for a character's animation, he may also reenact it.[21]

He is represented in both Undertale and Deltarune as the recurring Annoying Dog, which often appears in comedic situations in both games. Toby also wears an Annoying Dog suit for the Deltarune trailers.[22] Outside of the games, he has used the Annoying Dog to represent himself in social media, and announcements of his collaborations. This includes Touhou Danmaku Kagura Phantasia Lost.[23]

Outside of developing Undertale and Deltarune, he is known for his work on the music team for the webcomic Homestuck, as well as for contributing music to several other video games, including Pokémon Sword & Shield,[24] Pokémon Scarlet & Violet,[25] OMORI, and YIIK.[26] He has also released original music in collaboration with the singer Itoki Hana, and been featured on the albums U.U.F.O. by Camellia[27] and pale machine 2 by bo en.[28]

Robert Sephazon

The producers M.O. is, "for the fan's sake, let's finish this before we become old and wrinkled" ... I agree! (instantly stops being wrinkled)

Toby quoting Robert Sephazon, Spring 2024 Undertale/Deltarune Newsletter

Robert "Sephazon" Maloney is the producer of Deltarune, and was hired by Toby around October 2023 during Chapter 3 and 4's development.[30] He primarily works on team organization, task management, and publishing guidance.[31] As early as May 2024, Robert's management has improved the team's productivity.[32] While he was initially unnamed in the newsletters, Robert later revealed his role as the producer on the game's paid release on June 4, 2025.[33]

For the UNDERTALE 10th Anniversary Stream, Robert was the producer and had conceptualized the Memories project.[34] He has also occasionally travelled to attend some of the UNDERTALE 10th Anniversary Concerts in Japan.[35]

Outside of Deltarune, Robert has helped produce other independently-developed games. He was the producer of two action-adventure games, where he worked with similar teams during its development: the Another Metroid 2 Remake fan game in 2016,[36] and Bō: Path of the Teal Lotus from 2021 to 2024.[37] He was the port producer for the 2022 Curse Crackers: For Whom the Belle Toils platformer,[38] and was also the producer and publishing lead of Paper Trail, a 2024 adventure puzzle game.[39] Robert has also participated in Game jams on itch.io where he has contributed and designed three small games, all with various teams: Babilawn, a tower defense game made for Extra Credits Game Jam 6, Helm's Oddity, a Game Boy Color-styled dungeon crawler for GMTK Game Jam 2021, and The Forest's End, a Metroidvania-styled game for Metroidvania Month 31 x Magical Girl Game Jam 13.

Prior to producing video games, Robert has done various work in the video game industry, primarily for Nintendo. He entered the field after being inspired by Iwata Asks, which are segments where Satoru Iwata interviewed developers of Nintendo hardware and games.[40] Robert has an interest in journalism, interviewing, video games and development history as far as 2013.[41] Some of his works includes making over 200 gaming review articles, modified or written 400 online publications, organized and directed a gaming stream, has done multiple interviews in the gaming industry, and worked with public relation organizations.[42] These articles and publications are scattered across multiple news and fan community sites, such as Zelda Universe.[43]

In between 2006 through 2014, Robert also ran a YouTube channel that was centered around Pokémon, with collaborations between other YouTubers such as Marriland and Chuggaaconroy via Nuzlocke Challenges or playing versus them, playthroughs, community interviews, and talking about Nintendo. However, he officially retired from the channel in February 2014, and his channel's videos are no longer publicly accessible. In 2014, Robert was hired as an external contractor at The Pokémon Company International, and worked as a coordinator for the Pokémon: Symphonic Evolutions concerts, where he also attended a few.[36][44] In 2016, Robert was hired as a Miiverse Community Insights Specialist for Nintendo of America, which he cites as the inciting incident that led him to eventually move to Japan and become a video game producer.[45] In the same year, he also became a part of the Professor Program to judge Play! Pokémon video game events such as tournaments or championships.[46]

In 2017 to 2020, he contributed articles to the Nintendo-focused news website Nintendo Life.[47] and translated Famitsu columns by Masahiro Sakurai into English.[48] For translations, Robert is meticulous and thorough to ensure it is accurate, going so far as to verify with other associates.[49] After his work at Nintendo Life ended, he continued to be credited for his translations of Japanese interviews on Video Game Chronicles[50] and Nintendo Life.[51]

Aside from his main interests, he also designs Harajuku fashion as a hobby.[52]

Artists

Temmie Chang

Temmie Chang is the main artist and animator for Undertale and Deltarune. She also illustrated the borders for the console versions.[57] For the UNDERTALE 10th Anniversary Stream, Temmie is credited as being the main artist.

She uses a Wacom Intuos to draw, and uses the program Krita for drawings, Adobe Animate and After Effects for animations, and GraphicsGale for pixel art.[58]

She is represented in both Undertale and Deltarune as the NPC monster Temmie. The Temmie character's design and personality was based on Temmie Chang's avatar and typing style at the time of Undertale's development. Temmie's avatar at the time was based on a drawing by Temmie's friend Betty Kwong, who is credited in both Undertale and Deltarune for creating the design.[58]

Outside of her work on Undertale and Deltarune, she has developed her own games, these being Escaped Chasm and Dweller's Empty Path, both of which Toby Fox contributed music to. She has also created a webcomic titled Soul Beacon of the Netherworld, and has a YouTube channel where she has posted several animations and a small number of song covers. She is a fan of the MMO game Final Fantasy XIV, frequently posting fanart of it on social media, and according to her interview often tries to get Toby to play it.[58]

There have apparently been a few times where she has forgotten that she made an asset for the game and said that it looks nice, only to be told that she was the one who drew it.[58]

Her favorite characters from Deltarune are Susie and Jevil.[58]

Gigi D.G.

Gigi D.G. is a writer and artist known for creating the webcomic Cucumber Quest and the fantasy visual novel Soul of Sovereignty. On Deltarune, they serve as a concept artist. Gigi was also a playtester and artist for Undertale, and drew pieces of promotional artwork that were used for the game's Steam trading cards and merchandise, such as Mettaton's poster.

Gigi's Deltarune concept art that has been publicly shown has mostly been of areas, including the Cyber World and an early concept for the TV Time stage in Chapter 3. They are also known to have created concept art for the character designs of at least Kris, Susie, and Tenna.[60] They have stated that of the concept art they have created for the game, they are most proud of their work on Chapter 3, and that they also enjoy when they get to put the main characters in new outfits.[61]

Their favorite characters from Deltarune are Susie, Noelle, and Ralsei. Their least favorite character is Rouxls Kaard, who they had such a negative reaction to during testing that Toby feared he would be a widely hated character.[61]

Many of Gigi's Chapter 3 and 4 concept arts are featured in the WINTER 2025 Newsletter.[62][63] In a Tumblr post tag, Gigi expresses disbelief that most of the environment concepts they worked on for these Chapters were painted on Procreate.[64] In a Bluesky post, Gigi considers the concepts arts of Tenna and Susie particularly important, where Susie gets a word censored.[65]

Kanotynes

Kanotynes is an artist and directly influenced the designs for Lancer, Rudinn, Hathy, Clover, King, and Jevil. Each of these designs, with the exception of Jevil, predates the development of Deltarune, being created as a project for Kanotynes's design class.[66] In April 2012, Toby Fox saw Kanotynes' post of these playing card designs, which inspired to make a game featuring them,[67][68] and he sought her permission to use them.[69] She is not an active member of the Deltarune team. Kanotynes's card designs are available as official merchandise.[70]

Nelnal

Nelnal (JP: ネルナル) is a Japanese illustrator, and the character designer for Sweet Cap'n Cakes, Tasque Manager,[71] and Lanino and Elnina.[72] They have also designed official merchandise of Sweet Cap'n Cakes for Fangamer.[73]

In the ISSUE 4 - Autumn 2023 issue of the Newsletter, Nelnal spoke briefly about their work on Chapter 2. They recalled feeling "completely dumbstruck" when Toby contacted them with a work request, and said that their work on Deltarune was the first time that they had been so inspired by an assignment.[73]

When designing Sweet Cap'n Cakes, they had initially only been asked to design a single music-based character. They provided three design options for this, but Toby liked all three designs and struggled to choose, so the concept was split into three characters.[74] Nelnal also created several other designs outside of the three that became Sweet Cap'n Cakes, but these have currently never been publicly shown.[73]

Outside of Deltarune, they have worked as a concept artist and illustrator for several properties, such as illustrating several cards for the Pokémon Trading Card Game, and creating character designs for the game RATATAN. They are also known for work they have posted with their own original characters, and in 2024 published an art book featuring this work.[75]

Splendidland

Samanthuel Louise Gillson, better known as Splendidland, is an artist and the character designer for Poppup, Ambyu-Lance, Hacker, and Fommt. She also created concept art for some areas in the Cyber World, such as the concept art for Spamton's house,[76] and designed several characters that ultimately went unused.[77] She additionally provided pixel art assistance for Chapter 3.

Outside of Deltarune, she has developed several of her own games, including Megaman Sprite Game (which was based on her comic series Megaman Sprite Comic),[78] FRANKEN, and Formless Star. She created the first Don't Talk To Me Or My Son Ever Again meme.

Chess

Tcheska Lynn B, also known as Chess, is an artist, streamer, and hobbyist game developer. She has assisted Toby with various aspects of game development since late in the development of Undertale.[20] In Deltarune, she has been responsible for several miscellaneous things, including making the original sprites for Kris and Susie's Dark World forms, designing Berdly's Dark World form,[77] and assisting with cutscenes in all currently existing Chapters from Chapter 2 onwards.

The first thing she worked on for Deltarune was creating the base sprites for Kris and Susie's Dark World forms, based off of Gigi D.G.'s character designs, which Temmie would later work off of for the rest of their sprites. These sprites consisted of overworld sprites for Susie and an idle battle sprite for Kris, in addition to a "way overdone" concept for Kris's attacking animation.[20]

Her favorite character to make things for during the development of Chapter 2 was Queen, who she worked on several cutscenes involving, as well as being responsible for creating the sprites for the GIGA Queen battle.[20]

Everdraed

Everdraed is an artist and video editor, who has a distinct photobashing-based style. He edits video trailers and other promotional material for Undertale and Deltarune, in addition to creating the assets for Undertale's Omega Flowey battle.

Within the Deltarune game itself, he is credited for creating Photoshop edits and "Weird Anim" for Chapter 3 and being responsible for the various photographic assets used in that Chapter. Everdraed also edited the video for Tenna's intro animation,[60] and animated Tenna's "Word Art".[79]

For the UNDERTALE 10th Anniversary Stream, Everdraed was the creative lead for the project,[80] and had originally wanted to have the 10th Anniversary Logo as the Annoying Dog playing the piano, but from a front-view angle.[81]

PIXELATEDCROWN

Chelsea Saunders, also known as PIXELATEDCROWN, is a 2D and 3D artist and game developer. In Deltarune, she was first credited as assisting with cutscenes in Chapter 2. More prominently, in Chapter 3, she created the 3D assets and renders used in Tenna's sprites,[82] though she was not involved in creating Tenna's character design.[83] She also animated Tenna's intro animation.[82] She continued to assist with cutscenes in Chapter 4.

Pixelatedcrown was also responsible for the creation of the 3D Toriel model used in some promotional material for Undertale.[82] A model of Ralsei in a similar style appears in Tenna's intro animation, which Chelsea credits Toby's original art as being helpful for creating it.[84]

Outside of Deltarune, Chelsea has done 2D and 3D arts ranging from characters, props, and environments. She has developed many small prototype games, and two games for Google in 2017, including the 3D puzzle game Kintsukuroi. She has a currently-paused game named PROTOWORLD, which has a demo showcasing player movement and character abilities.

Audrey Waner

Audrey Waner is a mixed media artist and graphic designer. In Deltarune, she did the typography design for the word art that appears throughout Tenna's dialogue, as well as the logo for TV Time.[85][60]

Outside of her work on Deltarune directly, she is also a designer for Fangamer, having designed a number of pieces of merchandise for the company, including several items based on Undertale and Deltarune. For the UNDERTALE 10th Anniversary Stream, Audrey made the final 10th Anniversary logo.[86][81]

Smallbu Animation

Smallbu Animation is a husband-and-wife animation team, consisting of Alex Small-Butera and Lindsay Caroline Small-Butera. They provided animation and editing assistance for Chapters 3 and 4 of Deltarune. Specifically, they assisted with the posing in Tenna's introduction cinematic in Chapter 3,[60] and created the animations of Kris playing the piano and the Titan's hand in Chapter 4.[87]

Outside of Deltarune, Smallbu Animation has animated the various versions of the UNDERTALE 10th Anniversary Stream logos.[88]

Smallbu Animation is best known for creating the web series Baman Piderman, and co-developing the 2019 game Later Alligator, which they created the animation for. They have also worked on a number of animated television shows, including Adventure Time, The Owl House, and Smiling Friends, with Lindsay winning an Emmy award for "Outstanding Individual Achievement in Animation" for her work on the Adventure Time episode "Ketchup".[89]

Clairvoire

Clairvoire (spelled in the credits as Clairevoire) is an artist who handled pixel cleanup of Tenna's sprites,[60][90] as well as general pixel art assistance in Chapter 4. In Undertale, Clairvoire also drew the dog food in Alphys's lab.[91]

puppiesandanime

Shawn Martins, also known as puppiesandanime, is a pixel artist and animator that is credited with "Pixel Art Assistance" for Chapter 2. He contributed spritework for Swatch's shop background with the posing Swatchlings and Spamton's dialogue sprites and his shop background.[92] Both are based on Gigi's and Toby's concept arts respectively, which Shawn had closely followed.[93][94] He also did spritework for the exteriors of Seam's shop, the Cafe and its interior, Party Dojo, and the Top Bakery, which was based on concept art as well.[95]

Outside of Deltarune, the types of pixel arts he has done for a variety of art for other games such as Duelyst II, and Flynn: Son of Crimson. This includes VFX animation, character animations, environment design, and lead art designs. In 2020, Shawn developed a pixel platforming game called Brave Dog's Road to learn about development. He is currently contributing as a senior pixel artist to an upcoming independently made turn-based JRPG called Threads of Time.[96]

Kenju

Kenju is credited for "Pixel Art Assistance" for Chapter 2, and had created of some of the tiles for Queen's Mansion.[97]

Programmers

Sarah O'Donnell

every time i worked on a scene with the snack tray in ch4 it made me want a cheesed cracker

Sarah O'Donnell, Undertale/Deltarune Newsletter Winter 2025

Sarah O'Donnell is a member of Deltarune's main development team. She handled porting the original Chapter 1 demo to consoles in 2019,[98] and has continued working on the game during the development of every Chapter as of Chapter 4.[99] She also handled porting Undertale to the Xbox One.

Outside of Deltarune, she has developed several of her own games, which she has published on itch.io. Sarah is also an artist who has drawn several comics, which have been published in a variety of anthologies and publications.[100] She has an interest in hydroponic gardening.

For Chapters 3 and 4, Sarah programmed most of the cutscenes. She also handled implementing for localization, patches, and building the game for every platform, and helped with testing and organization. Specifically for Chapter 4, she had to remake the Noelle's House sequence three times.[62]

Taxiderby

Taxiderby is a programmer and a member of Deltarune's main development team. During Chapter 2's development they primarily worked on enemy bullet patterns, but now work on a variety of things.[20]

Prior to working on Deltarune, Taxiderby was notable in the Undertale fanbase for creating Undertale RED, which was one of the earliest Undertale fan games.[103] They also approved of and helped write dialogue for Red's cameo in the fan-developed Undertale Yellow.[104] Taxiderby also develops their own original games, such as Moment to Midnight and the currently on-hiatus pixelated "pseudo-RPG", Rainshade.[105]

For Chapter 2, Taxiderby's favorite thing they worked on was the "[Press F1 for] HELP" easter egg versus Spamton and Spamton NEO. Toby had remarked that the F1 key should do something due to the already-existing dialogue mentioning it, to which Taxiderby had the idea of the Spamton angel appearing and healing the player. They animated, coded, and implemented it entirely by themselves after Toby approved of the idea. They noted being surprised by the easter egg's popularity.[20]

Their favorite character to make things for during the development of Chapter 2 was Rouxls Kaard, with Noelle as a close second. They only worked on bullet patterns for Rouxls, but said that it was fun to account for the various different parts the Thrash Machine could have. With Noelle, they apparently worked on her monologue scene in the Cyber City.[20]

For Chapter 3, Taxiderby assembled the Rock Video minigame.[106] For attacks, they worked on Shuttah's attacks, and the Knight's Stars and Box Splitter attacks.[62]

For Chapter 4, Taxiderby worked on some of the complex visual cutscene sequences, such as Kris falling into a prophecy tapestry, and into the Titan with Susie.[62] For the Titan battle, they are particularly proud of coming up with the light up mechanic for the SOUL to incentivize grazing and encourage going near bullets.[107] Taxiderby also had created concepts for Ralsei's ReviveKris and Susie's WakeKris, with the latter idea of Susie smacking the back of Kris's head to wake them up being unused.[108]

Fred Wood

Fred Wood is a Texas-based programmer and a member of Deltarune's main development team, having joined the project early on in the development of Chapter 2.

Outside of Deltarune, for the UNDERTALE 10th Anniversary Stream, Fred Wood was credited as contributing additional programming for the 10th Anniversary Sans battle.[109] He has also developed several games, including the LOVE series.[110]

For Deltarune, Fred Wood mostly works on overworld related parts of the game,[20] and has stated that he set up the flags and logic for Chapter 2's Weird Route.[111]

The second thing he worked on for the game was Nubert's room in Chapter 2, which he made on his second day working on the game without any context for who Nubert was.[20]

One of his favorite things he worked on in Chapter 2 was "all the vase shenanigans" in Queen's Mansion. He brought special attention to the "Vase Race" (the section where Kris must balance a vase on their head), saying that he considers getting to the end of it without dropping the vase one of the hardest and most satisfying things in the game.[20]

His favorite glitch during the development of Chapter 2 was one where by eating the moss in Cyber City with Susie, then talking to the dumpster in the same room, the player would be able to acquire a "powerful item you weren't otherwise supposed to be able to get", for reasons that took a surprisingly long time to figure out. Given the described context, the item in question was most likely the ThornRing.[20]

His favorite character to make things for during the development of Chapter 2 was Noelle, especially as he was working on the Maus puzzles, which he said were sometimes difficult to implement.[20]

During Chapter 3 and 4's development, he admits those years were difficult on a personal level. For Chapter 3, Fred began work months after Chapter 2's release in 2021, and his main responsibility was the Desert Board and Kodakoda Island boards for TV Time. He admits that programming the characters inside The Legend of Tenna segments was difficult. He also contributed a lot of content for TV World, with the Third Stealth Zone being one of his favorite sections.[112]

For Chapter 4, Fred Wood was responsible for the Dark Sanctuary, 2nd Sanctuary, and small amount of the 3rd Sanctuary. Fred comments that he improved his workflow while working on these overworld segments, which had multiple iterations to be enjoyable to explore.[112] At some point during programming, Fred had nearly accidentally left text mentioning taco in-game, which is apparently his favorite food.[62]

Jean Canellas

Swatchling artwork Jean Canellas.png
A purple Swatchling, which was used to represent Jean Canellas in the Chapter 2 developer interview

Jean Canellas is a game developer who primarily works on Deltarune's battle systems, mostly on aspects other than bullet patterns. He joined the team during the development of Chapter 2, a few weeks after Fred Wood.[20]

Outside of Deltarune, he was the director of the 2016 Dark Souls-inspired platformer Death's Gambit: Afterlife.[113]

The first thing he worked on for Deltarune was the GIGA Queen boss fight, which he spent his first two weeks programming and designing, along with playing Super Punch Out!! and supposedly "fighting people in the street" for reference.[20]

His favorite character to make things for during the development of Chapter 2 was Spamton NEO. In the Chapter 2 developer interview, he recalled spending a very long time trying to balance the Pipis attack, to the point that he began to see Pipis in his dreams. He also stated that his favorite thing he worked on in Chapter 2 was the "funnycheat" feature that was added in v1.06, where Spamton NEO becomes angry and deals higher damage if the player uses an exploit to fire continuous Big Shots without recharging.[20]

His favorite glitch in Chapter 2's development was one where Poppup's Click ACT, which causes Poppup to create many duplicates of its sprite until it "crashes", would never stop creating duplicates until the game itself would actually crash.[20]

For both Chapters 3 and 4, Jean programmed the logic for all bosses, enemies, and created all the ACTs.[62]

Specifically for Chapter 3, Jean created all the attacks for Rouxls, Lanino and Elnina's boss encounters. He also worked on the full Shadow Mantle holder battle, and integrating and balancing all minigames for Tenna's battle.[114] For Chapter 4, Jean had collaborated with Toby and AlexMdle to assemble the Hammer of Justice battle, which "took a long time".[115]

Xan Wetherall

Xan Wetherall was a member of the main development team for Deltarune Chapter 2. They only appear in the credits of Chapter 2, indicating they are likely no longer working on the game as of Chapter 3. Very little is known about them.

Alphys's speech sound effect in both Undertale and Deltarune is a clip of their voice.[116]

Outside of Deltarune, they are credited as an Operation Coordinator for the 2021 puzzle game Mini Motorways.[117]

AlexMdle & PureQuestion

AlexMdle (pronounced "Alex Middle")[118] and PureQuestion are game developers and members of Deltarune's development team. Besides being a developer, AlexMdle is also an artist, though he is not known to have worked on art for Deltarune.

AlexMdle and PureQuestion were initially "Super Testers" for Chapter 2,[119] before becoming members of the main development team from Chapter 3 onwards.

For Chapter 3, Alex programmed the Susiezilla minigame. For Chapters 3 and 4's battles, Alex programmed many bullet patterns, including the Knight's Rotating Slash attack and final attacks, as well as all of the Titan's attacks.[62]

PureQuestion also programmed many bullet patterns for regular enemies for Chapters 3 and 4, and also worked on Jackenstein's attacks for Chapter 4.[62]

Outside of Deltarune, they founded the game development team Team D-13, which developed the 2017 game Star of Providence (formerly known as Monolith). AlexMdle and PureQuestion also created the mod character The Hermit for the game Slay the Spire, which is one of the most popular character mods for the game, and which was eventually integrated into Downfall, a massive and well-known fan-made expansion.[120][121]

Juju Adams

Juju Adams is a London-based programmer. He is credited with the creation of development tools for Deltarune used from Chapter 2 onwards, which the credits note as "(Cool)".

Outside of Deltarune, he has worked on several commercial games created with the GameMaker engine, and is known for creating several popular open source libraries for use in GameMaker.[122]

Sara Spalding

Sara Spalding, also known as SaraJS, is a programmer and game designer. She provided programming assistance for Chapter 2, before becoming a full-time member of the main development team some time around May of 2024.[123]

Sara is first credited as a main team member in Chapter 4, where she helped with difficult programming and visual effects. This includes the Dark Sanctuaries lighting, ripples, and prophecies. For Chapter 5, she is currently creating cutscenes.[62]

Outside of Deltarune, Sara is most known for her YouTube channel, where she has published many tutorials for the GameMaker engine. She also developed the 2014 puzzle game Another Perspective, and an upcoming 2D platformer called PokeyPoke, though her work on Deltarune is currently taking priority over the latter.

Lars Korendijk

Lars Korendijk is a Dutch-based artist, game developer, programmer, designer, and writer. Lars is credited for programming assistance for Chapter 2. Outside of Deltarune, Lars worked on other independent games: Wuppo, a 2016 action adventure platformer, which later became Wuppo: Definitive Edition in 2019. In 2024, Lars created Tiny Terry's Turbo Trip, a 3D action exploration game.

Enjl

I think my favourite part of Chapter 4's development was when I got to dual wield cats for a while. I wish I could do that IRL all day every day.

Enjl, Undertale/Deltarune Newsletter Winter 2025

Henri Beeres, also known as Enjl is a programmer and is a part of the main team for Deltarune as of Chapter 4. Outside of Deltarune, he has also done game design, electronic music, and various digital art.[124]

For Chapter 4, Enjl handled the Titan Tower, and a few overworld rooms. He handled the Nintendo Switch 2 version of Mike minigames, and Pluey. For Chapter 5, Enjl is the main overworld programmer.[62]

Joost

Joost is a developer as of Chapter 4 for Deltarune. He worked on tiling, and assembled visual and background details for Chapters 4 and 5.[62]

Outside of Deltarune, he is developing an upcoming game named Memamorkin.

Andy Brophy

I had to move my workspace into another room because I was yelling into my microphone too much.

Andy Brophy, Undertale/Deltarune Newsletter Winter 2025

Andy Brophy is a game designer from Melbourne, Australia. On Deltarune for Chapter 4, he is credited as the "Mike Maker", as he had created all three Mikes. He also worked on the Jongler and Battat minigames.[62] At the time of Chapter 4's release, Andy informs he had been working on the game for about a year and a half.[125]

Andy is still working on content for Deltarune, though he "doesn't even know what they are".[62]

Outside of Deltarune, he has been working with the GameMaker engine since 2005, and has developed many games, including the 2023 RPG Knuckle Sandwich, along with a number of smaller games that he has published online since at least 2008. He is currently working on the upcoming game Surf Club, which is made under the game label Dinko, which he co-runs.

Ondy

Ondy was a guest developer who worked on the Cooking Show minigame for Chapter 3, and had "created important things for Chapter 5".[62]

Outside of Deltarune, Ondy has developed multiple games, including Tres-Bashers, a 2D monster-bashing adventure game.

James

James was a guest developer who worked on the cowboy minigame for Chapter 3, and the Whirl ACT versus Winglade in Chapter 4.[62]

?????

????? is a currently-unnamed developer that is working on programming boss bullets for Chapter 5.[62]

Musicians

Laura Shigihara

Laura Shigihara (JP: 鴫原ローラ Shigihara Laura) is a singer and composer. In Deltarune, she is the singer of the Chapter 1 credits theme, Don't Forget, which she also did the piano arrangement for. Laura is also credited for singing Until Next Time, the end credits theme for Chapter 2 and 3. Toby originally found her via Kan Gao's RPG Maker adventure game To the Moon.[126]

Outside of Deltarune, she has worked on the soundtrack for many games. One of her most well known works is the soundtrack for the 2009 game Plants vs. Zombies, where she both composed the game's soundtrack and sang its credits theme, for which she received an award from the Game Audio Network Guild in 2010.[127] She also created the 2017 RPG Maker adventure game Rakuen. In 2023, this game was ported to the Nintendo Switch alongside a new spinoff game titled Mr. Saitou, which Toby Fox contributed an "annoying" song to.[128]

Lena Raine

Lena Raine is a composer and producer. In Deltarune, she collaborated with Toby Fox on the songs Cyber Battle (Solo) and Attack of the Killer Queen in Chapter 2, and edited the audio for Piano that may not be played that well in Chapter 4.

She also created the unofficial 2018 release Lullaby for Lancer, a single featuring two piano-and-synth-based arrangements of songs from Deltarune Chapter 1.[129]

Outside of Deltarune, she has worked on several games, with some of her most notable work being the soundtrack of the 2018 game Celeste, and several songs that have been added to Minecraft through updates.[130] She was also the lead developer of the 2018 text adventure game ESC, which she was the writer, main programmer, and composer for.[131]

Marcy Nabors

Marcy Nabors is a sound designer and composer. In Deltarune, she collaborated with Toby Fox on the song Attack of the Killer Queen in Chapter 2. In Chapters 3 and 4, she assisted with MIDI cleanup for the tracks Adventure Board, Raise Up Your Bat, and Knock You Down!! (Rhythm Ver.).[132]

She also collaborated with Toby on music for the UNDERTALE 10th Anniversary Stream event, specifically helping with the MIDI transcription for Abandoned Town and Underwater Town.[133]

Outside of Deltarune, she was previously a member of the Homestuck music team alongside Toby Fox. Her more recent work includes collaborations with the musician Jamie Paige, having handled mastering for her albums Bittersweet and Constant Companions, as well as being featured on one song on each.[134][135]

Alex Rosetti

Alex Rosetti is a game developer and composer. In Deltarune, they handled arrangement for the track Gyaa Ha ha!.[136]

Outside of Deltarune, they were previously a member of the Homestuck music team alongside Toby Fox.

Itoki Hana

Itoki Hana (JP: 糸奇はな) is a Japanese singer-songwriter. In Deltarune, she provided vocals on the tracks Dark Sanctuary and Neverending Night.[137]

Toby met her years ago after she sent Undertale fanmail, and the two have been friends since.[138] Hana was one of the first Japanese fans to send fanmail prior to the game's localization.[139] She has done song collaborations with Toby that have been mentioned in the Newsletters, some of which is also featured on Toby's Fangamer subpage. This includes 74,[140][141] Skies Forever Blue in ISSUE 1 - Winter 2022,[142] and THE GREATEST LIVING SHOW in ISSUE 2 - Spring 2023.[143]

Localization

Keiko Fukuichi

Keiko Fukuichi (JP: 福市恵子 Fukuichi Keiko) is a freelance English to Japanese translator. Keiko is the primary Japanese translator of Deltarune, and was also the primary translator for Undertale, having earned an award from her translation for Undertale. Her work is done under the company 8-4, Ltd., who are also the publishers of the console versions of Deltarune.[144][145] She also translated other works for Toby and Fangamer, such as the UNDERTALE Art Book, the Japanese translation of the Newsletter,[146][147] the Japanese version of the Spamton Sweepstakes on deltarune.com/jp/sweepstakes.[147]

Keiko has always had an interest in reading and writing Japanese sentences, and studied English since she was a child to parse English lyrics from music bands. She became a translator to skip the process of job hunting, as she did not have any aspirations to work for any company in particular.[148] When gauging if she could become a proper translator, she applied to a trial run for a company in 2004 that was looking for freelance game translators. After the successful application, Keiko has been working as a freelance translator ever since, having noticed a need for this job.[148] She prefers to play a game first before translating it.[148]

In 2018, Toby mentioned he is proud of the Japanese translation for Chapter 1, and feels that Keiko understands his "tone of voice" well. He stated he is happy to keep working on translations with her.[149] Despite Toby learning Japanese, one of Keiko's tweets mentions that he trusts her on the translation process, and how he only offers an outline and suggestions to her.[12]

For Chapter 3, Toby revealed the time to translate in the Newsletter to surprise her.[150][146]

Outside of her work on Undertale and Deltarune, she has also worked on the localizations of Enter the Gungeon, Return of the Obra Dinn, My Friend Pedro, and Hades.[151]

256graph

256graph is a Japanese game development and graphic production company that additionally handles outsourced graphic design work for other studios. In Deltarune, they are credited with creating Japanese versions of graphics that contain text.

Outside of Deltarune, 256graph has worked on several games, mostly for other studios. In the category of localization work, they also created Japanese assets for the games Shovel Knight and Rogue Legacy.[152]

References

  1. It's my 26th birthday. Where's the time go...? It feels like just yesterday I was 25... Huh? That WAS yesterday? — October 11, 2017.
  2. ↑ It's my 26th birthday. Where's the time go...? It feels like just yesterday I was 25... Huh? That WAS yesterday? — October 11, 2017.
  3. ↑ 『DELTARUNE Chapter 1』が2/28に配信決定
  4. ↑ Here are my thoughts on Ch 1 of Deltarune. This should answer some questions.
  5. ↑ I usually made up my songs on the piano. I think I'll stop now, though. I hope the music I do in the future will be OK without it... — November 20, 2016.
  6. ↑ I still think that's good advice, but if you're self-taught, please make sure you learn to play piano/keyboard with the proper technique... — November 20, 2016.
  7. ↑ Every time I play the piano intensely, my wrists and hands hurt for a long time after. Probably because I didn't learn to do it correctly. — November 20, 2016.
  8. ↑ The Cutting Room Floor's coverage of metadata on some song files in Deltarune
  9. ↑ An FL Studio tutorial Toby Fox wrote in 2011
  10. ↑ ちなみに、今年は日本語をちゃんと勉強していたので、今回は日本語版の翻訳をもっと手伝えました。

    例えば、スージィを　「俺使い」、　ランサーを　「僕様使い」　というキャラクターにしたのは僕の発想でした。（ヨホ）     — November 02, 2018.
  11. ↑ I didn't try to learn Japanese for a long time because I thought it would be too hard. But now I love learning it and I use it every day.

    If there's anything you want to learn, don't be stopped by thinking it'll be too hard! Try it! Game-making, music, art, language, anything!     — January 18, 2019.
  12. 1 2 . @tobyfoxさんのすばらしいところは、「こんなふうにしてほしい」という方針を明確に示してくれた上で、「翻訳者はあなただから、僕の意見はあくまでも参考です」と、翻訳の実作業については常にこちらを信頼して任せて下さるところ。まさに過不足のない監修とはこういうことだなと頭が下がります — November 04, 2018.
  13. ↑ Now that's Winter, I'm thinking about NEWSLETTER. But I haven't written anything for one yet...

    Right now, my energy is going towards preparing Chapter 5 for localization. The translation process begins next week. We have extracted all the English text and we are now annotating it.
    https://cdn.bsky.app/img/feed_fullsize/plain/did:plc:vshnclkqqguyg6xcz6q7g65k/bafkreie7uq5hwkgmr3fl4w4s3cfqd4h5snclsqtewajppj6tz2gbsyxxca@jpeg     — @tobyfox.undertale.com on Bluesky, December 01, 2025.
  14. ↑ 3. Unfortunately, there are no translations for UNDERTALE into other languages besides Japanese. That includes Spanish and Brazilian Portuguese, but also every other language – Chinese, Korean, Russian, French, German, Italian, and more.

    I know it sucks that there are no other official translations for UNDERTALE. But I want to make it clear that this isn’t because I have a grudge against other countries. It’s because, if I release something official, I want it to match my vision. I was only able to do this for the Japanese version because I know Japanese myself, and I worked very closely with our brilliant translator to thoroughly check the text. I am not against official translations for other languages if we could make it work the same way… In the past I have looked into various options with my publisher, 8-4, but nothing has come of that yet. Maybe I should try a different approach.

    I’m very happy that there are unofficial translations on PC. Considering I don’t understand other languages, letting fans interpret the game without the burden of being “officially” perfect is amazingly helpful.

    As for DELTARUNE, it’s just not feasible from a development standpoint to support other languages right now, since it would make the game take longer to come out...     — @tobyfox.undertale.com on Bluesky, March 29, 2026.
  15. ↑ UNDERTALE Help, FAQ, & Troubleshooting
  16. ↑ This concept art I drew for the latest newsletter makes me laugh (it's out btw) — July 31, 2024.
  17. ↑ DELTARUNE Status Update - Sept 2020 | DELTARUNE
  18. ↑ So, I don't actually program anything any more. Occasionally I do go on call with somebody and tell them exactly what to do, however.
    Debug Magazine, Issue #10
  19. ↑ Recently I've been reading some of game's main scenes to some other people working on DR, and hearing them laugh and react has been some of the most fun I've had in a long time. — July 06, 2019.
  20. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CHAPTER 2 DEVELOPMENT TEAM INTERVIEW - Toby Fox, Fred Wood, Jean Canellas, Taxiderby, Chess
  21. ↑ there will be times where i have difficulty understanding what toby wants for certain character animations, so he will act them out to show me [...] one he did this with was an old man's idle (he used a broom — July 14, 2025.
  22. ↑ If you missed the Nintendo Direct, then you missed Deltarune Chapter 1&2 being announced by me breaking through a wall in a giant dog suit!
    https://t.co/sDBtQStZUz     — September 23, 2021.
  23. ↑ A message from Toby Fox 【Touhou Danmaku Kagura Phantasia Lost】 on YouTube
  24. ↑ Hey, I'm finally allowed to announce this: I was asked to compose a track for Pokémon Sword & Shield! It's a huge honor to be asked to be part of something like this. I hope you enjoy hearing it when the game comes out! — November 01, 2019.
  25. ↑ I had the honor of composing the field music for Pokémon Scarlet and Violet! After creating a concept sketch, Game Freak arranged it into many versions that you'll hear throughout the game. You can hear a bit of it in this trailer... — June 01, 2022.
  26. ↑ Into The Mind (Toby Fox) | AckkStudios
  27. ↑ Myths You Forgot (feat. Toby Fox) | Camellia
  28. ↑ prelude | bo en
  29. ↑ Estuans interius ira vehementi Sephiroth!

    For my namesake, I visited the Square Enix Café on its last Final Fantasy VII: Rebirth collaboration day.

    私の名前の通り、本日『ファイナルファンタジーVII: リバース』コラボ最終日にスクウェア・エニックスカフェを訪れました。     — May 10, 2024.
  30. ↑ Chapter 4 already has a very substantial amount of cutscenes and enemy work done. Also, I've hired a new producer whose entire job it will be to speed up the overall game development for future chapters. — Halloween 2023, Undertale/Deltarune Newsletter (Toby Fox, October 31, 2023.) toby.fangamer.com.
  31. ↑ Robert – Producer that has a soft spot for older Japanese men and history. While generally not involved in the core development process, he works on team organization, task management, and publishing guidance. May actually be a frog. — CHAPTER 3 and 4 LOOK BACK! (Fox, Toby, December 18, 2025.) toby.fangamer.com.
  32. ↑ For the great news… Thanks to increased management power provided by my new producer, we've been able to hire a few more people onto the team! Everyone's only been working on the team for a little over a month and a half, but it's making a real difference already. — Spring 2024, Undertale/Deltarune Newsletter (Toby Fox, May 16, 2024.) toby.fangamer.com.
  33. ↑ I am honored to finally reveal my role as the producer for Deltarune!

    It has been a rewarding experience working with @tobyfox.undertale.com and this talented team. On behalf of everyone, we hope you enjoy playing!

    Here is a totally legit [citation needed] photo with Toby™, we promise.     — @sephazon.bsky.social on Bluesky, June 04, 2025.
  34. ↑ I am honored to have been the producer for the UNDERTALE 10th Anniversary special stream version. It was as fun to work on as it was to watch, thanks to the three musketeers and @tobyfox.undertale.com! I also conceptualised the UNDERTALE Memories project with @fangamer.com.

    Stay determined!     — @sephazon.bsky.social on Bluesky, September 21, 2025.
  35. ↑ Excited to attend the UNDERTALE 10th Anniversary Concert in Osaka! I know everyone involved has put in a lot of work to make an incredible experience!

    大阪で開催されるUNDERTALE10周年記念コンサートに参加できて嬉しいです！関係者の皆様が、この素晴らしい体験を実現するために多大な努力をしてくださったことは、本当に嬉しいです！     — @sephazon.bsky.social on Bluesky, September 14, 2025.
  36. 1 2 Stair and Youngquist were originally working on the project alone, but have now been joined by these three reputable names who know a thing or two about the Metroidvania genre — Milton Guasti (DoctorM64, Director of AM2R and level designer on Ori and the Will of the Wisps), Esteban Criado (DruidVorse, AM2R's Lead Playtester and Metroidvania speedrunner), and Robert Maloney (Sephazon, Producer of AM2R and Associate for Pokémon Symphonic Evolutions). — AM2R Developers Reunite For Okami-Inspired Metroidvania 'Bo: Path Of The Teal Lotus' (Hagues, Alana, June 20, 2022.) Nintendo Life.
  37. ↑ Bō: Path of the Teal Lotus is now LIVE on Nintendo Switch! 🌸 As the producer for @SquidShock I invite everyone to jump into a world inspired by Japanese folklore, featuring breathtaking traditional art, dynamic aerial combat, and an immersive story.

    nintendo.com/us/store/products/bo-path-of-the-teal-lotus-switch/     — July 17, 2024.
  38. ↑ Curse Crackers: For Whom the Belle Toils, a game I worked on with @ColorgraveGames, just launched!

    This is a platformer with acrobatic mechanics, beautiful art, and a wonderful soundtrack. It took me over 24 hours to 100%, and you can pet the dog!

    store.steampowered.com/app/1726760/Curse_Crackers_For_Whom_the_Belle_Toils/     — August 31, 2022.
  39. ↑ After years of paper cuts, folds, and tears, we are proud to finally share our award-winning game, Paper Trail, with the world!

    nintendo.com/us/store/products/paper-trail-switch/

    『Paper Trail』は23日に日本でスイッチにて発売されます。ページとして @Makiko_Ohmoto と一緒に仕事ができたことを光栄に思います。     — May 21, 2024.
  40. ↑ Iwata Asks is what inspired me to enter the gaming industry over a decade ago. These discussions are among the most interesting in the field. — July 02, 2021.
  41. ↑ Robert "Sephazon" Maloney | Smashboards
  42. ↑ Robert Maloney | about.me
  43. ↑ Robert Maloney | Zelda Universe
  44. ↑ Be sure to check the LATEST Pokémon Symphonic Evolutions tour locations and dates! I'll be attending the symphony in VA, WI, and IL! — March 26, 2015.
  45. ↑ Eight years ago I was hired to work as a Miiverse Community Insights Specialist with Nintendo of America. This ultimately culminated in my decision to move to Japan to become a video game producer.

    I recently had the opportunity to visit the office where it all began.     — @sephazon.bsky.social on Bluesky, January 06, 2025.
  46. ↑ I'm officially a Pokémon Professor and VG Judge. — February 08, 2016.
  47. ↑ Robert Sephazon (Author) | Nintendo Life
  48. ↑ This thread is a continuation of Masahiro Sakurai’s Famitsu column #609, started by @PushDustin. It details the fighter position and composition direction of Super Smash Bros. Ultimate. — July 29, 2020.
  49. ↑ I spent extra time translating the material, spoke with a Japanese colleague familiar with business language, and had a friend with an N1 certification review the translation as well. Please let me know if there are any concerns with my translation for this article. — June 30, 2022.
  50. ↑ translated by VGC contributor Robert Sephazon — Nintendo’s next console: Shareholders ask about backwards compatibility and more (Ivan, Tom, June 27, 2023.) Video Game Chronicles.
  51. ↑ translated for VGC by Robert Sephazon — Nintendo Says The Ratio Of Switch Online Expansion Pack Users Is "Especially High" In The US (Hagues, Alana, May 12, 2022.) Nintendo Life.
  52. ↑ I have recently been designing #EGLFashion with a Kirby spin. These are all proof-of-concepts and do not represent any official works. — November 07, 2023.
  53. thank you so much for all the birthday wishes!!!!!!!!! ＼( ᐛ )/ 🎈✨i’ve been trying to read through them all!!! really thank you so much!!! i’ll try my best this year! — April 03, 2021.
  54. i'm 23 and i still get acne breakouts — June 03, 2016.
  55. ↑ thank you so much for all the birthday wishes!!!!!!!!! ＼( ᐛ )/ 🎈✨i’ve been trying to read through them all!!! really thank you so much!!! i’ll try my best this year! — April 03, 2021.
  56. ↑ i'm 23 and i still get acne breakouts — June 03, 2016.
  57. ↑ oh btw i drew borders for this and such like featured here🚴‍♀️ — February 15, 2019.
  58. 1 2 3 4 5 Interview Time with Temmie! - Toby Fox and Temmie Chang
  59. ↑ i’m not changing my icon here because my icon here is a pallisia and the username of the blog is “pallisia.” but please consider this my chosen representation of “me” going forward.

    if you look me up online, you will probably see an ancient self-portrait that hasn’t accurately represented me for a long time. (it will sometimes be attached to a wiki article where they’ve gone to the trouble of updating my pronouns, which i really appreciate, and yet…)     — pallisia on Tumblr, July 10, 2025.
  60. 1 2 3 4 5 I drew the basic design and drew his poses. Gigi polished the design + drew his turnaround. Clairevoire manually cleaned up his static sprite frames as pixel art (hands, etc.) Everdraed edited the intro. SmallBu helped w/ his final intro poses. And Audrey did all his typography! — June 19, 2025.
  61. 1 2 SPECIAL NEWSLETTER SPOTLIGHT & INTERVIEW - GIGI - Toby Fox and Gigi
  62. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CHAPTER 3 and 4 LOOK BACK! - Toby Fox
  63. ↑ there's a lot of concept art i made in the ch3 & 4 retrospective... just saying... 😇... — @ggdg.bsky.social on Bluesky, December 18, 2025.
  64. ↑ it’s been a few months since deltarune ch3/4 came out, so here’s a little of my early environment art. it was an honor to contribute, as always. 💗 — pallisia on Tumblr, September 17, 2025.
  65. ↑ most importantly — @ggdg.bsky.social on Bluesky, December 18, 2025.
  66. ↑ The reason I made them in the first place was for my design class though. — kanotynes on Tumblr, March 29, 2012.
  67. ↑ I’D PLAY WITH THESE — fwugradiation on Tumblr, April 05, 2012.
  68. ↑ In 2012 I saw her designs for some playing-card inspired characters on tumblr and decided I wanted to make a game featuring them. It didn't end up going anywhere, but the idea of "I want to make an RPG" stuck with me. — November 02, 2018.
  69. ↑ He contacted me to ask if it was ok to use my designs well before he started work on any game. It’s such ancient history to me now, it feels pretty wild to see them again taking on a life of their own out there. — kanotynes on Tumblr, November 26, 2018.
  70. ↑ Treat them like one of your ITEMS!

    This official deck of DELTARUNE playing cards was designed by Kanotynes. It includes 52 illustrated cards, two jokers, and two rules cards.     — DELTARUNE - DELTARUNE Playing Cards - Fangamer (March 31, 2026.) fangamer.com.
  71. ↑ 本日公開された「DELTARUNE」のチャプター２にて大変僭越ながらゲストとして参加させていただきました！よろしくお願いします — September 18, 2021.
  72. ↑ Thanks to anyone who found them on the Secret Pages! I produced this pair for a new chapter a while back, and I hope you enjoy them as much as I do. (If you don't want to watch the spoilers, be warned.) #DELTARUNE — September 19, 2022.
  73. 1 2 3 UNDERTALE / DELTARUNE NEWSLETTER: ISSUE 4 - Autumn 2023 - Toby Fox
  74. ↑ あのキャラは、僕が大好きなデザイナーさんにキャラクターデザインをお願いしたんですが、「音楽系の敵をデザインしてほしい」と頼んだら、サンプルを3体も描いてくれたんです。僕はその3体とも気に入ってしまって、どれかひとつなんて選べなくて……それで、ああなったというわけなんですよ。 — つづきのはじまり。『DELTARUNE Chapter 1&2』がNintendo Switchで本日配信開始。 (September 24, 2021.) Indie World.
  75. ↑ NELNALIUM-WORKS
  76. ↑ hooray, i'm glad the new undertale/deltarune newsletter is out, you can see some of my weird unused designs in it! one bit of concept art that's not in there is some environmental design i did for Spamton's House. I imagined it as being a junk heap of e-mails and deleted icons. — splendidland on Tumblr, September 15, 2024.
  77. 1 2 CHAPTER 2 CONCEPT ART!!! - Toby Fox, Splendidland, Chess, Temmie
  78. ↑ hello everyone, it’s just me, your good pal samanthuel. as you might know, i created “megaman sprite comic” and also the hit rpg game based on it called “megaman sprite game”, and i am here to share some Cool Development Facts about it. — splendidland on Tumblr, April 03, 2017.
  79. ↑ The "Word Art" was put together by Audrey Waner and animated by Everdraed. — CHAPTER 3 and 4 LOOK BACK! (Fox, Toby, December 18, 2025.) toby.fangamer.com.
  80. ↑ I was creative lead for the UNDERTALE 10th Anniversary stream

    the event planning started in some ways years back, but in earnest 11 months ago

    I like making things for @tobyfox.undertale.com

    I like surreal nightmares I enjoyed mixing those together with many lovely, talented folks for #UT10th     — @everdraed.bsky.social on Bluesky, September 23, 2025.
  81. 1 2 Audrey made the final #UT10th logo, and the JP concert logo.

    I wanted to see the concert piano at a different angle so I MSPainted it, but that exposed the hands. the ultra realistic piano-playing hands.

    I am sorry.

    but they have no pain...     — @everdraed.bsky.social on Bluesky, September 23, 2025.
  82. 1 2 3 It should be obvious, but I needed a lot of help to make Tenna. All of Tenna's 3D (including the intro) was modeled, animated, posed, and rendered by the amazing and talented @PIXELATEDCROWN . (You might know her from making 3D Toriel...) — June 19, 2025.
  83. ↑ "not design, but all the visuals apart from some cleanup yeah" - pixelatedcrown on Tumblr, June 05, 2025. (This statement is in the replies of the post and not the post itself.)
  84. ↑ this drawing was actually really helpful for making this part of "that video" LOL — June 27, 2025.
  85. ↑ I'm so happy to share I contributed some art to Deltarune Chapter 3 in the form of Tenna's word art + the TV Time logo!! I had SO many type design inspirations, but special shout-outs to Typodermic Fonts, House Industries, Rocky & Bullwinkle, Paper Mario, and Adventureland Resort in Des Moines, IA. — @shapemover.bsky.social on Bluesky, June 12, 2025.
  86. ↑ I designed the logo for the Undertale 10th Anniversary and, to my surprise and delight, SmallBu animated it!! three times!!! — @shapemover.bsky.social on Bluesky, September 25, 2025.
  87. ↑ Thank you 🥰 We worked a little on ch3/4 of Deltarune. I'll talk a bit more about it later, since it's heavy spoilers. Enjoy the game, and congrats to our dear pal @tobyfox.undertale.com on his release, and for making everyone smile!!!! — @smallbu.bsky.social on Bluesky, June 05, 2025.
  88. ↑ It was our pleasure to animate the Undertale 10th anniversary logo for the stream! Here is a little thread showing the various versions.

    First is the normal one. Always excited when there is room to animate confetti.     — @smallbu.bsky.social on Bluesky, September 22, 2025.
  89. ↑ Alex and Lindsay Small-Butera on Wikipedia
  90. ↑ so many nice messages from folks for the tenna stuff, weeh... it's such a niche thing, but I'm the happiest render2sprite clean-up person-or-other ever aha — @clairvoire.bsky.social on Bluesky, June 19, 2025.
  91. ↑ UNDERTALE 10th Anniversary Stream - Day 1 on YouTube
  92. ↑ shopkeeper/ bg art I did for deltarune. concepts by gigi d.g. and toby fox — May 27, 2022.
  93. ↑ i actually forgot i posted this so thank you for the warm response. a few FAQ:
    - yeah gigi d.g. did concept art. so many replies were shocked i thought i accidentally leaked that but they ARE in the credits
    - i followed the concept art fairly closely, toby/gigi deserve all praise     — May 28, 2022.
  94. ↑ as usual im obligated to add that i followed toby's concepts very closely and had no input on design or implementation and claim no ownership of the character or assets. but i did still make the sprites — March 10, 2023.
  95. ↑ finished replaying ch1 and immediately my art in ch2. i drew the shop exteriors and cafe tileset. all from toby's/ others concept art of course. — October 11, 2021.
  96. ↑ Threads of Time is officially announced. 😭

    www.youtube.com/watch?v=tRMg...     — @puppiesandanime.bsky.social on Bluesky, September 26, 2024.
  97. ↑ UNDERTALE 10th Anniversary Stream - Day 1 (03:15:59) on YouTube
  98. ↑ aw yes! now that it’s been announced I can finally share that I’m handling both the Switch and PS4 ports of Deltarune (*´∇｀*) (enlisted by 8-4, naturally) — February 14, 2019. Archived on September 13, 2020.
  99. ↑ Sarah O'Donnell - Moby Games
  100. ↑ Sarah O - itch.io
  101. MY FREAKING BIRTHDAY JUST HAPPENED YEYEEWAAARRRGGGGHHH — @taxiderby.coven.cafe on Bluesky, January 18, 2026.
  102. ↑ MY FREAKING BIRTHDAY JUST HAPPENED YEYEEWAAARRRGGGGHHH — @taxiderby.coven.cafe on Bluesky, January 18, 2026.
  103. ↑ HI I MADE PLAYABLE UNDERTALE TRIBUTE GAME WHATSIT???? — taxiderby on Tumblr, September 16, 2015.
  104. ↑ Yoooo for real? could you imagine if i gave them permission and helped write her dialogue to keep her in character too?? well i don't have to because i did that — taxiderby on Tumblr, December 14, 2023.
  105. ↑ https://www.youtube.com/watch?v=NFqLSyjfyI8

    Oh yeah I’m working on another game!!

    Rainshade​ is a pseudo-RPG about making friends and parrying your enemies, currently in development for you and everyone you know!     — taxiderby on Tumblr, October 23, 2021.
  106. ↑ By the way! Did you! Know! I made the Lightners Live minigame for Deltarune! The mechanics, the charts, the silly details — everything but the music, writing and final art was me. I even built an entire chart editor from scratch, because manually timing each note sucks so so bad #deltarune — @taxiderby.coven.cafe on Bluesky, June 20, 2025.
  107. ↑ [CH4 SPOILERS] Although I made multiple VFX for the final boss, I’m most proud of its gimmick. To better fit the tone and incentivize grazing, I came up with the mechanic of light that slows and destroys bullets (including the centipede pattern), which Alex did an amazing job putting all together ✨ — @taxiderby.coven.cafe on Bluesky, March 20, 2026.
  108. ↑ Pose ideas I had for Susie's "Wake" ACT in Chapter 4 that didn't get used + bonus cherubs that did — @taxiderby.coven.cafe on Bluesky, March 19, 2026.
  109. ↑ https://ut10-battle.undertale.com/
  110. ↑ Fred Wood's website
  111. ↑ I'm very excited for this run, but also nervous. I set up all the flags/logic for the weird route, so if they break that, it's 100% my fault. #AGDQ2022 — January 16, 2022.
  112. 1 2 https://www.tumblr.com/thatsmytrunks/789541697244758016/now-that-a-little-time-has-passed-i-thought-id
  113. ↑ We couldn't help ourselves from finding out more about developer White Rabbit's first foray into the industry, so we got in touch with lead designer and programmer Jean Canellas to find out some of the history, inspirations, and deeper gameplay aspects behind Death's Gambit. — Interview: Uncovering the Soul and Giant Aspirations Behind Death’s Gambit on PS4 (Thurmond, Joey, September 29, 2016.) Push Square.
  114. ↑ It’s not mentioned in the newsletter because I forgot, but I programmed the full Shadowmantle battle and was responsible for balancing and integrating all the minigames for the Tenna battle. (1/2) — @jeancanellas.bsky.social on Bluesky, December 20, 2025.
  115. ↑ I also spent significant time collaborating with Toby and Alexmdle on assembling the Hammer of Justice battle. That one took a long time. Incredibly grateful and lucky for the opportunity to work on these. Glad people enjoyed! — @jeancanellas.bsky.social on Bluesky, December 20, 2025.
  116. ↑ UNDERTALE 10th Anniversary Stream - Day 1 (04:32:42) on YouTube
  117. ↑ Xan Wetherall - Moby Games
  118. ↑ An interview with AlexMdle and PureQuestion about The Hermit mod
  119. ↑ As a few people have already noticed, Alex and I (PureQuestion) are credited as "Super Testers" for DELTARUNE Chapter 2. We were brought on pretty recently, but it's been a really exciting opportunity, Thank you @tobyfox and the rest of the team! — September 18, 2021.
  120. ↑ The Hermit's page on the Steam Workshop
  121. ↑ Downfall - A Slay the Spire Fan Expansion on Steam
  122. ↑ Juju Adam's website
  123. ↑ The Future on YouTube
  124. ↑ https://enjlectric.github.io/
  125. ↑ I'm stoked to finally post about this... I've been helping out on Deltarune for the last year and a half! I'm constantly in awe of what the team has been able to accomplish with this game, I'm so happy I can help contribute to a project that means so much to so many people. — @brophy.website on Bluesky, June 05, 2025.
  126. ↑ Second of all, the ending song, "Don't Forget," was sung / arranged by Laura Shigihara @supershigi (I found her through Kan Gao's @Reives_Freebird To the Moon). 'Cause of her the ending really feels special...! Also she's just extremely nice and good at music — November 02, 2018.
  127. ↑ Laura Shigihara - Moby Games
  128. ↑ UNDERTALE / DELTARUNE NEWSLETTER: ISSUE 2 - Spring 2023 - Toby Fox
  129. ↑ Lullaby for Lancer | Lena Raine
  130. ↑ Lena Raine's website
  131. ↑ ESC’s lead developer/ writer/ composer/ multi-talented human Lena Raine agreed to answer some of my questions about ESC and how it became so good. — ESC's creator opens up about the game and working with a game design dream team (SPNKr, May 29, 2018.) itch.io.
  132. ↑ I hope everyone is enjoying the music in DELTARUNE Chapters 3 and 4 so far! My work is a little more behind-the-scenes this time, but I did some MIDI cleanup on tracks 6, 20, and 44 in the new soundtrack :) — @shadolith.bsky.social on Bluesky, June 04, 2025.
  133. ↑ I did MIDI transcription for Abandoned_Town.wav & Underwater_Town.wav! — @shadolith.bsky.social on Bluesky, September 21, 2025.
  134. ↑ Bittersweet | Jamie Paige
  135. ↑ Constant Companions | Jamie Paige
  136. ↑ Now that it's been a bit (and I added the credit to my website finally) I will say the specific Deltarune track I arranged was Gyaa Ha Ha! Presumably that track title isn't really a spoiler if you haven't played. It was really fun for me bc it's one of my favorite styles to make music in! — @albasoup.itch.io on Bluesky, June 10, 2025.
  137. ↑ この度『DELTARUNE』chapter4の楽曲に、コーラスで携わらさせていただきました。とても光栄で、たくさんの方に感謝の想いで一杯です。ありがとうございます。

    I had the honor of singing the chorus for the soundtrack of DELTARUNE Chapter 4. I'm grateful to so many people for making this happen. Thank you.     — @1t0lc1.bsky.social on Bluesky, June 11, 2025.
  138. ↑ I met Itoki Hana years ago when she sent me a fanmail after playing UNDERTALE. (Turns out my friends knew who she was because of her amazing vocal Kirby covers on Youtube...) Since then we became friends, and occasionally sing Final Fantasy songs at karaoke together — August 06, 2018.
  139. ↑ When I released UNDERTALE, I wondered if the game would reach RPG fans in Japan... So, after the game released, I was quite happy when one of my first fan letters was from a Japanese fan. This fan's name was Itoki Hana. — ISSUE 1 - Winter 2022, Undertale/Deltarune Newsletter (Toby Fox, December 20, 2022.) toby.fangamer.com.
  140. ↑ 【糸奇はな/Itoki Hana】74【Composed by Toby Fox】 on YouTube
  141. ↑ Tomorrow is the 4th of July... So, as "7/4" it's also a good day to remember the song "74" that @1t0lc1 and I made together. I wonder if the Princess will be roasting hot dogs tomorrow... well, whatever she's cooking, it smells good🔥🌭🔥 — July 03, 2019.
  142. ↑ Skies Forever Blue/Toby Fox & Itoki Hana on YouTube
  143. ↑ The Greatest Living Show /Toby Fox & Itoki Hana on YouTube
  144. ↑ DELTARUNE for Nintendo Switch - Nintendo Official Site
  145. ↑ Deltarune's page on the Playstation Store
  146. 1 2 （翻訳者：今、訳しながら「はッ！？」って言いました…　マジっすか…？） — 『UNDERTALE』『DELTARUNE』メールマガジン - Vol. 2（2023年春号） - Toby Fox (Fukuichi, Keiko, March 31, 2023.) toby.fangamer.jp.
  147. 1 2 担当したお仕事｜福市恵子
  148. 1 2 3 『UNDERTALE』、『VA-11 Hall A ヴァルハラ』、『Owlboy』などを手掛ける実力派翻訳者に聞く。ゲーム翻訳の醍醐味と苦労と……
  149. ↑ The translator, @keiko_fukuichi, did awesome work and I'm really proud of how things turned out. Since she also translated UNDERTALE, it feels like she understands my tone of voice really well now. I'm happy to keep working with her. — November 02, 2018.
  150. ↑ The translation process for Chapter 3 is getting really close to starting! Actually, I haven't told the translator this so she'll learn this when translating this text. Have fun with that one — ISSUE 2 - Spring 2023, Undertale/Deltarune Newsletter (Fox, Toby, March 31, 2023.) toby.fangamer.com.
  151. ↑ Legends of Localization Book 3 - UNDERTALE, Clyde Mandelin, ISBN 9781945908019
  152. ↑ 256graph.WORKS
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