ECCO The Dolphin

This is without a doubt one of the most unique games for the Megadrive Genesis. It's part dolphin simulator, part action-adventure game. Ecco the Dolphin was a huge success for Sega and one of the most interesting video games of 1993. You control a dolphin called Ecco. He is looking for his pod. The graphics are unparalleled, especially the image of Ecco himself. There are more than 20 levels, and the difficulties you face are automatically adjusted according to how good (or bad) a player you are.