Touhou BGM on VGS is a multimedia app developed by yoji Suzuki for iPhone. It features a collection of Touhou Project BGM arranged specifically for the VGS Software Synthesizer. The app adheres to the guidelines for derivative works of the Touhou Project, ensuring the faithful reproduction of the music while offering slight arrangements for optimal performance on VGS.

The app's HOME screen allows users to play songs by title, lock/unlock songs, and easily navigate through the music library. Additionally, features like the ALL screen for sequential playback, SHUFFLE screen for randomized playlists, RETRO screen with an old Eastern VGS UI, and SETTINGS screen for customization and support links provide a comprehensive music experience.