CommentStreams:Bf3d301ed6b8ecc294bafdad4e813c8b
From The Lost Media Wiki
The SNES version wasn't shelved for "unknown reasons" and was pretty much complete and almost if not completely ready to ship when it was canceled, it was shelved because the Genesis/Mega Drive and Sega CD/Mega CD versions seriously under-performed in sales causing Psygnosis to get cold feet at the last minute and the SNES version was canceled as a result, also the data Jon Burton has is not the final build but rather assets from an early backup of the SNES version (based on the files I saw the build was probably an early test build that was made around the time development began on the SNES version).