Do you remember Ecco the dolphin ? An action/exploration game, ecological, released on all SEGA consoles (even my beloved Dreamcast). I was surfing on eBay Australia when I found this gold nugget :

Ecco the dolphin for Megadrive, Platinum edition from Australia

The Platinum edition of the sequel, the Tides of Time, in a beautiful artwork. There are some games edited in this collection… Catch them all ! 🙂