Napstablook (Undertale Film)

Napstablook is a character in the Undertale 2025 film. He is a melancholic ghost monster and musician/DJ who lives in Waterfall, first seen and encountered by Frisk in the Ruins.

Appearance
Napstablook's design is that of a simple ghost: mostly black and white, a long white body, two eyes with black sclerae (the white parts of the eyes on normal eyes), white pupils, and a mouth. A thin black line separates the eyes. After encountering Napstablook in Waterfall, he wears a pair of generic black headphones for the rest of the game.

Personality
Napstablook is a dour introvert with low self-esteem. Napstablook cries in battle, which may indicate some form of depression, anxiety or sorrow. Despite this, Napstablook is courteous to others and treats Frisk as a guest when she visits Napstablook's home. He often employs self-deprecation and apologize for any inconveniences to be polite.

Abilities
Napstablook can cry acid tears to hurt those who get hit by it, even if it's by accident.

Differences from Game Character

 * Napstablook in the game has an ambiguous gender. However, in the film, he is described in certain promotional material as male.