A Sega video game series about a time-travelling bottlenose dolphin who fights space aliens. His friends include a pteranodon, a telepathic strand of DNA, and flying dolphins from ten million years in the future. Or, if you ask some people, a telepathic crystal and various alternate future dolphins. The series was originally for the Sega Genesis/Mega Drive, and began with Ecco the Dolphin. In this game, Ecco's pod was snatched from the seas by a mysterious storm, so he set out to find them, helping other dolphins along the way.