You can download the soundtrack here: http://www.mediafire.com/file/v51n98bukez9z0u/v1.2_DYNAMITEMANEXE_PRESENTS_CAVE_STORY.zip/file

Note that the files for fanfares (Life Capsule, Boss victory, Get item and Game Over) are played at 4x speed. You can either edit them manually or download full versions from DynamiteMan's Bandcamp upload: https://dynamitemanexe.bandcamp.com/album/dynamitemanexe-presents-cave-story-vrc6
