is the 100th track in the official Undertale soundtrack , composed by Toby Fox . It serves as the theme for the Special Thanks credits sequence, specifically occurring after the True Pacifist ending of the game. Composition and Musical Significance

: The piece is primarily written in B Major and G♯ Minor .

: It has a high-energy "Hopes and Dreams" vibe, serving as a reprise of the game's core themes to celebrate the player's journey.

Last Goodbye Undertale -

is the 100th track in the official Undertale soundtrack , composed by Toby Fox . It serves as the theme for the Special Thanks credits sequence, specifically occurring after the True Pacifist ending of the game. Composition and Musical Significance

: The piece is primarily written in B Major and G♯ Minor . Last Goodbye Undertale

: It has a high-energy "Hopes and Dreams" vibe, serving as a reprise of the game's core themes to celebrate the player's journey. is the 100th track in the official Undertale