: Within the game's internal files, the track is titled mus_express_myself . Narrative Role
: The piece is primarily written in B Major and G♯ Minor . 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 : Within the game's internal files, the track
: The track gained additional notoriety in the "high-quality rip" community (e.g., SiIvaGunner), where it was used as a recurring theme for channel "endings" and fake-out announcements. It serves as the theme for the Special
: The piece is notable for its energetic, triumphant arrangement that shifts into a more nostalgic, emotional tone. The piano solo portion of the original track was actually performed live by Toby Fox . Technical Details :
: 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.