This version of Faxanadu is a ROM hack, meaning it is an unofficial modification of the original game. The changes made are by a user named Safaribans, and the 20070422 date indicates the version date.  The ‘Uncensored Edition’ label suggests that this hack alters the original game's content, likely removing or modifying elements considered explicit in the original release.  The changes improve the graphics.  This is not an officially released version.

Faxanadu (USA) (Rev A) [Graphic Hack by Safaribans v20070422] (Uncensored Edition)

Faxanadu (Japan)