Ecco the dolphin for Saturn?

The game looks pretty good... I love Ecco 1 and 2 for Sega CD... I really wish a Saturn version did come out... this also got me thinking a bit... has there been any Sega Saturn Beta ISO's released to the net... I doubt we will see a Ecco for Saturn Beta on the net.. but perhaps some other neat betas are out there... that have not made it to the final product...