RetroGamer 198 PDF, PDF, Video Game Development
Ecco the Dolphin (Mega Drive) : Novotrade : Free Download, Borrow, and Streaming : Internet Archive
Replay: DuckTales, Replay Wiki
What The Hell Did I Just Play? – Ecco the Dolphin - Game Informer
Ecco The Dolphin: Defender Of The Future Download - GameFabrique
ECCO THE DOLPHIN - DEFENDER OF THE FUTURE (NTSC-U) - FRONT
Good Deal Games - World's Largest Video Game Collection recognized by the Guinness Book of World Records