Ecco the Dolphin is an action-adventure game originally developed for the Sega Genesis and later ported to the Game Gear in 1994. Players control Ecco, a dolphin who traverses the depths of the ocean and harnesses sonar abilities to communicate, solve puzzles, and combat threats. With its unique underwater settings, the game is renowned for its challenging gameplay, environmental storytelling, and a distinct atmospheric soundtrack. Ecco must save his family and friends from extraterrestrial beings known as the Vortex, navigating through various marine environments filled with obstacles and dangers.