Ecco the Dolphin

Ecco the Dolphin drops players into a deep blue world where swimming feels less like a mechanic and more like breathing. Ed Annunziata and Novotrade International crafted this 1992 Sega Genesis title as a unique blend of platforming and science fiction storytelling. You control a bottlenose dolphin navigating Earth's oceans while uncovering mysteries about hostile aliens who have arrived on spacecraft to harvest marine life. The game relies heavily on exploration and puzzle-solving rather than combat, asking you to use echolocation and environmental cues to progress through time and space.[edit]