W.D. Gaster

W.D. Gaster (also known as Dr. Gaster, or simply Gaster) is a character hidden within Undertale. He was the royal scientist in the Underground before Alphys, until he "fell into his creation" and was "shattered across time and space".
==Games==
===Official===
*Undertale
===Unofficial===
*UnderRacer
*Slendertale
*Undertale Battle Simulator (bouncyyak)
*YABTS: Yet Another Bad Time Simulator
*Dusttale
*Undertale: Last Breath
*Deltatraveler
===Friday Night Funkin' mods===
*VS. Gaster
*FNF VS. KRIS?
*gaster rap
*Vs THE GREAT PAPYRUS
*VS Chara - Slots Take
*Seek's Cool Deltarune Mod
*Friday Night Fallen
*uner tale mod
*FNF - Distorted Entry
*Subsumed - A Gaster Oneshot
*FNF: Toby Hack
*FNF - TURNED TO DUST
==Undertale==
W.D. Gaster is a character mentioned in Undertale, through hidden events that only appear if the hidden "fun" variable randomly set at the start of the game is at certain values. He is discussed by the "Gaster Followers" who have small chances of appearing outside of specific elevators in Hotland.
Gaster is commonly believed to be one of two figures that can be found in hidden rooms. If the "fun" variable is set to 66, a hallway appears after the "Waterfall - Crystal" SAVE point in Waterfall, which itself has a 10% chance of containing a gray door. Inside the door is "Mystery Man", who unlike other NPCs cannot be collided with. Interacting with them causes them to react in surprise before vanishing. Leaving the room causes the door to disappear from the corridor, and leaving the corridor causes it to become inaccessible.
The other figure sometimes speculated to be Gaster is "Redacted", found in the inaccessible Room 272. The NPC fades when approached, and says "🖂︎ ☯︎❒︎♏︎♎︎♋︎♍︎⧫︎♏︎♎︎☸︎" ("* redacted") when interacted with. Leaving the room sends the player to the "Sound Test" room, which also has a 50% chance of being accessed when travelling upwards from the "Snowdin - Box Road" SAVE Point if the "fun" variable is set to 65 and Papyrus has been defeated. The room consists of a menu containing four short tracks that are not used anywhere else in the game, including one labelled "Gaster's Theme" that cannot be stopped once played. Once Gaster's Theme has played for 17 seconds, the song will stop and the screen will display the text "Thanks for your feedback! Be seeing you soon!" before the player is returned to the prior room.
A hidden entry from the True Lab presumably written by Gaster can be found in Room 264 of the game, which can only be accessed by editing the game's SAVE.
The game's data contains stats for a battle with Gaster, however no other data exists for the hypothetical encounter.
===Datamined Stats===
*HP: 666,666
*AT: 66,666
*DF: 66,666
*EXP: -6,666
*Gold: -6,666
==UnderRacer==
Gaster appears as a secret playable character in UnderRacer who can be unlocked for use after obtaining the "Bonely in the Void" achievement by falling into a pit on the Core track. His special attack is W.D. Blaster.
Gaster is one of three characters, along with Frisk and Undyne, to appear in the game's intro sequence. After Gaster is unlocked as a playable character, he will also appear partially transparent in the top-right corner of the main menu.
==Slendertale==
W.D. Gaster appears as the enemy of Slendertale, stalking the player throughout most of the game. Gaster slowly walks toward the player, with little ability to path around obstacles. If the player enters Gaster's line of sight, he will dash toward them at high speed and jumpscare them, instantly killing them.
Gaster will teleport to a random location when the player gets far enough away, the distance decreasing as the player collects notes.
Once the player has collected all six notes, Gaster's walk speed increases.
==YABTS: Yet Another Bad Time Simulator==
W.D. Gaster appears during two boss battles in YABTS: Yet Another Bad Time Simulator, fought on his own in a massive white void and paired with Sans in the Last Corridor.
Gaster stands still, cycling through a set attack pattern:
*Gaster creates seven sets of two Gaster Blasters in front of him, which fire at the player's position.
*Gaster creates four sets of two massive Gaster Blasters in front of him, which fire at the player's position.
*Gaster creates seven sets of three Gaster Blasters in front of him, which fire at the player's position.
*Gaster rapidly launches hollow squares of Wingdings symbols at the player, with small gaps in-between..
*Gaster creates seven sets of two Gaster Blasters around the player, that fire toward them.
*Gaster creates a succession of seven Gaster Blasters in front of him, which fire at the player's position. At the same time, large hands will rise up from the ground at the player's current position.
*Gaster creates seven sets of two Gaster Blasters in front of him that fire at the player's position. Unlike his first attack, there is minimal downtime between creation of the blasters.
Gaster will teleport to a random nearby location between attacks, as well as after he takes a hit.
==Dusttale==
If the player's randomly-assigned fun value is set to 4 in Dusttale, Gaster will call them in Snowdin to taunt Chara.
===Dialogue===
*"Did you really think that I don’t have a grip on this world? You’re pathetic. You can’t escape from me, even here. I am everywhere. Just don’t forget about me, Chara."
==gaster rap==
Gaster appears as the opponent of gaster rap, a mod of Friday Night Funkin', faced in the song Wingblings. Gaster's sprites are taken from a meme based on a scene in the Strong Bad Email episode "ISP" of a pixelated mouse dancing.
At the end of the song, Gaster's sprite glitches out, shortly followed by the game crashing.
==FNF VS. KRIS?==
Gaster appears as an opponent in FNF VS. KRIS?, a mod of Friday Night Funkin', faced in the song Someone.
==Vs THE GREAT PAPYRUS==
Gaster appears as an opponent in Vs THE GREAT PAPYRUS, a mod of Friday Night Funkin', faced in the song Entry Log.
Alternate versions of him named EX Gaster and Gaster EXE appear as the opponents of the songs Gasterpurgation and Triple Skeletons respectively.
==VS Chara - Slots Take==
Gaster appears as an opponent in VS Chara - Slots Take, a mod of Friday Night Funkin', faced in the song Blaster.
==Seek's Cool Deltarune Mod==
Gaster appears as an opponent in Seek's Cool Deltarune Mod, a mod of Friday Night Funkin', added in Version 5.0 as the player character of the song Lore and the opponent of The End.
==FNF - Distorted Entry==
Gaster appears as the opponent of FNF - Distorted Entry, a mod of Friday Night Funkin', faced in the song Deficiency.
==Subsumed - A Gaster Oneshot==
Gaster appears as the opponent of Subsumed - A Gaster Oneshot, a mod of Friday Night Funkin', faced by Dess Holiday in the song Subsumed.
==FNF: Toby Hack==
Gaster appears as an opponent in FNF: Toby Hack, a mod of Friday Night Funkin', faced in the secret song Entry 17.
==Gallery==
To see the complete gallery, visit here.
UnderRacer - Sprite - Gaster - Intro.png|UnderRacer - Intro
Yet Another Bad Time Simulator - Sprite - Gaster - Idle.png|YABTS: Yet Another Bad Time Simulator
Undertale Last Breath - Sprite - Gaster.png|Undertale: Last Breath
Deltatraveler - Sprite - Gaster - Down.png|Deltatraveler
Entry Funkin' - Sprite - Mystery Man - 1 - Idle.png|Entry Funkin' (Ft. Mystery Man)
==Site Navigation==
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