The concept album at the heart of the 2016 Kickstarted reboot of a 2003 cult classic rhythm game. Between the original and this reimagining, developer Harmonix would rewrite the book on music games via Guitar Hero 1, 2, and then Rock Band and its sequels before returning to smaller fan-requested projects like this one and my poor, sweet Chroma.
A woman trapped in her own mind and a man willing to undertake an experimental medical procedure to save her, told over 15 levels/tracks. Gameplay involves rapidly switching paths to shoot targets in time with a different instrument on each path, eventually completing enough sequences to make all tracks play simultaneously and hear the complete song. Powerups and a score system keep players aiming for perfect performance and timing on each instrument and each track.