Ecco the Dolphin's creator wants a movie for the alien-fighting game hero | SYFY WIRE
Ecco the Dolphin (character) | Sega Wiki | Fandom
Ecco the Dolphin - Full Soundtrack [SEGA Mega Drive] (FLAC) : Magyari András, Spencer N. Nilsen, Brian Coburn : Free Download, Borrow, and Streaming : Internet Archive
ECCO Group
Ecco the Dolphin: Defender of the Future - Wikipedia