Virtual-On: Oratorio Tangram

 is an action game developed and published by Sega on December 9, 1999 in Japan and on June 1, 2000 in North America for the Sega Dreamcast.

3 additional Virtuaroids were released through the SegaNet service for the VMU in Japan and probably in North America. The preserved content only works for the Japanese release.

How to obtain
See Transfer Saves Between Dreamcast and PC.