Ecco The Dolphin SMS

The gameplay is essentially side-scrolling, with horizontal, diagonal and vertical movement. Attacking enemies is accomplished by making Ecco ram into them at high speeds. Swimming could be made progressively faster by tapping a certain button, and the speed could be maintained by holding it down. Players can perform a purely aesthetic spin in the air when jumping out of the water. Two features of the game played on actual dolphin habits; one button causes Ecco to sing, allowing him to speak with other cetaceans and interact with certain objects. The same button is used for echolocation; holding it down would cause the song to return, generating a map of the area. Additionally, Ecco, being a mammal, has to surface periodically for air, or else find an air vent. If the "air meter" ran out, Ecco would lose health rapidly-this represented drowning.

- TheGamesDB