W.D. Gaster 1.0.0 & 1.1

W.D. Gaster was made by: "1850, Sumin"

W. D. Gaster was the royal scientist before Alphys, responsible for creating the CORE. Gaster's Followers relay various explanations as to what happened to Gaster. One iteration says that he "fell into his creation," another says that "his experiments went wrong," and the last one says he "shattered across time and space." Characters such as the River Person and Gaster's Followers hint at his existence. Similar to Sans and Papyrus, he speaks in a typeface different from the other characters.

Gaster acts a boss character, for every time you hurt him, you must press the down button after hitting him to trigger his follower's phases.

Attack or press down on the followers to deal damage to him.

Gaster is invulnerable to every single attack except for physical attacks that trigger his phases.

Good luck, for The Man Who Speaks In Hands is always listening...