15 Months Ago, GameZone says (in Spectrobes: Beyond The Portals “Creators’ Selection” Downloadable ...)  MI -
The Disney Interactive Studios Japan and Jupiter Corp. team that created the game picked their favorite creatures to make available for downloading. ...

16 Months Ago, IGN says (in Downloadable Content for Spectrobes: Beyond the Portals Now Available)  CA - Oct 31, 2008
Published by Disney Interactive Studios and developed by Jupiter Corp., Spectrobes: Beyond The Portals is now available.