Rude Buster by Toby Fox
Rude Buster is a Toby Fox cue from the 2018 game Deltarune. Chapter 1 arrived as a free demo called SURVEY_PROGRAM on 31 October 2018, and its soundtrack followed on 1 November 2018. Rude Buster sits at track 10 of the Deltarune Chapter 1 OST and runs about 1:15. The cue functions as a standard battle theme for ordinary enemy encounters rather than a boss-only set piece; that placement follows the listed Deltarune OST pages, and Fox reused the cue in later Deltarune material as documented. Later official variants are listed under separate names at OST-listing level: Ruder Buster, a boss arrangement, and Vapor Buster, a slowed treatment. They are listed as distinct tracks, not alternate titles for the Chapter 1 recording. The piano score indexed here is a third-party arrangement, independent of Fox's release and not an official composer-issued piano work. An arrangement can reshape register, texture, and pacing, so read the score as an interpretation of the OST cue rather than a re-issue of it. A separate Deltarune piano collection, DELTARUNE Piano Collections Vol. 1, is also listed at listing level.
About Rude Buster
Rude Buster is a Toby Fox cue from the 2018 game Deltarune. Chapter 1 arrived as a free demo called SURVEY_PROGRAM on 31 October 2018, and its soundtrack followed on 1 November 2018. Rude Buster sits at track 10 of the Deltarune Chapter 1 OST and runs about 1:15.
The cue functions as a standard battle theme for ordinary enemy encounters rather than a boss-only set piece; that placement follows the listed Deltarune OST pages, and Fox reused the cue in later Deltarune material as documented. Later official variants are listed under separate names at OST-listing level: Ruder Buster, a boss arrangement, and Vapor Buster, a slowed treatment. They are listed as distinct tracks, not alternate titles for the Chapter 1 recording.
The piano score indexed here is a third-party arrangement, independent of Fox's release and not an official composer-issued piano work. An arrangement can reshape register, texture, and pacing, so read the score as an interpretation of the OST cue rather than a re-issue of it. A separate Deltarune piano collection, DELTARUNE Piano Collections Vol. 1, is also listed at listing level.