W.D. Gaster

"❽︎T︎H︎I︎S︎ N︎E︎X︎T︎ E︎X︎P︎E︎R︎I︎M︎E︎N︎T︎ S︎E︎E︎M︎S︎.︎.︎.︎ V︎E︎R︎Y︎.︎ V︎E︎R︎Y︎.︎ I︎N︎T︎E︎R︎E︎S︎T︎I︎N︎G︎.︎.︎.︎ .︎.︎.︎W︎H︎A︎T︎ D︎O︎ Y︎O︎U︎ T︎W︎O︎ T︎H︎I︎N︎K︎?︎❾︎”"

- W.D. Gaster

Not to be confused with X!Gaster.

W.D. Gaster, or just Gaster is a hidden character in UNDERTALE. He was the original Royal Scientist before Alphys. His death remains unknowed as their are three different reason given by his "followers" : Shattered across time and space, Experiement Failing etc.

In UNDERTALE, something known as 'FUN' Value exist within it. Different fun values give different type of fun events (hence the name "FUN" Value). Having the 'FUN' value as 66, the player can encounter Gaster. In the mod, he challenges BF to a rap battle. If he wins he gets his body back,escaping from the void and living among the monsters. If he loses he fades away.

Appearence
Although it's unknown what his appearance is before his death. It's theorized that he wears a black coat with a white inner shirt. His skin color is white and one of his eyes show a U pattern. The lines on his head is presumably cracks which he had possessed after his experiment failed.

Trivia

 * Gaster's voice lines in the "Gaster's Theme (FNF Remix)" song are mostly taken from multiple sources where he speaks. Specifically, his text noises from Entry #17, and multiple voices from abc_123_a.ogg (before it got replaced with a repeat of the laughing part).
 * Notably, the last sound Gaster lets out before fading away, is taken from the line "♫ It will be your faaaaault~ ♫"
 * When Senpai transforms in LilAlien's update, Gaster crashes into him, as Senpai explodes. This is a reference to when Lancer crashes into Ralsei, causing an explosion, from DELTARUNE, Undertale's spinoff which is also made by Toby Fox.
 * Many fans of Undertale believe that W.D Gaster is the father of Sans and Papyrus.
 * W.D. Gaster, like his speculated family, Sans and Papyrus, shares his name with a font, specifically being two: Wingdings, and Aster.
 * He is currently the only character to never have a fight with a protagonist.
 * His appearance is only THEORIZED. Toby Fox never reavealed his original appearance.
 * So many fans decided that one of his possible sprites (the mystery man sprite inside the grey door) will be his appearance

Dialogue

 * 💧🕆🏱 👌✋❄👍☟📪 ✋ 👍☟✌☹☹☜☠☝☜ ✡⚐🕆 ❄⚐ ✌ ☼✌🏱 👌✌❄❄☹☜ (SUP BITCH, I CHALLENGE YOU TO A RAP BATTLE)


 * ✡⚐🕆 💣✌✡ 👌☜ 👍⚐☠☞✋👎☜☠❄ ✋☠ ✡⚐🕆☼ 💧😐✋☹☹💧📪 👌🕆❄ ✋ 😐☠⚐🕈 ✋ 🕈✋☹☹ 🕈✋☠ (YOU MAY BE CONFIDENT IN YOUR SKILLS, BUT I KNOW I WILL WIN)


 * 👎︎□︎■︎❼︎⧫︎ ⬥︎□︎❒︎❒︎⍓︎ ♌︎□︎⬧︎⬧︎📪︎ ⧫︎♒︎♓︎⬧︎ ♍︎♒︎♋︎❒︎♋︎♍︎⧫︎♏︎❒︎ ♋︎●︎❒︎♏︎♋︎♎︎⍓︎ ⬧︎◻︎♏︎♋︎🙵⬧︎ 🕈︎♓︎■︎♑︎♎︎♓︎■︎♑︎⬧︎📪︎ ⧫︎♒︎♏︎⍓︎ ⬥︎□︎■︎❼︎⧫︎ ♏︎❖︎♏︎■︎ ■︎□︎⧫︎♓︎♍︎♏︎ ⧫︎♒︎♋︎⧫︎ ⬧︎□︎❍︎♏︎⧫︎♒︎♓︎■︎♑︎ ⬥︎♋︎⬧︎ ♍︎♒︎♋︎■︎♑︎♏︎♎︎✏︎ (BECAUSE I'VE GOT THE POWER OF DARKNESS AND SCIENCE ON MY SIDE)


 * ✋🕯💣 ☼☜✌☹☹✡ 👌✌👎 ✌❄ 🕈☼✋❄✋☠☝ 👎✋✌☹⚐☝ (I'M REALLY BAD AT WRITING DIALOGUE)



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