Ecco the Dolphin is a 3D platformer game developed by Sega for the Sega Genesis. It was released in the United States on November 15, 1994 and in Europe on December 3, 1994. The game is a remake of the console game Ecco the Dolphin. The objective of the game is to help Ecco escape from a watery prison and return to his home island. The player can interact with Ecco's environment by swimming, flying and swimming through hoops. Ecco the Dolphin is a 3D platformer game developed by Sega for the Sega Genesis. It was released in the United States on November 15, 1994 and in Europe on December 3, 1994. The game is a remake of the console game Ecco the Dolphin. The objective of the game is to help Ecco escape from a watery prison and return to his home island. The player can interact with Ecco's environment by swimming, flying and swimming through hoops.