Saturn games with bonus PC content
From Sega Retro
While Sega Saturn games were, for the most part, designed to be used exclusively in a Sega Saturn console, a number of titles offer extra bonus (or "omake") content which can be viewed when accessing the disc on a PC. This category lists games which intentionally made this type of bonus content available to end users. It does not include instances where discs can double up as music CDs.