SEGA ported Ecco the Dolphin for Windows PCs back in 1995. With increased hardware capacity and a lot more storage on the CD-ROM format, the original console version was rewritten from scratch, upgraded and packed with awesome new features and goodies. The original Ecco PC version features redrawn high resolution graphics; the CD Audio soundtrack from the MegaCD/SegaCD versions; the 3D rendered videos from Tides of Time, save/restore functions replacing the password system, 3 difficulties and translations to several languages.
Wow I had no idea the original port even existed, let alone improved on the console release. Ty for sharing.