Originally released between 1994 and 1997, the series was directed and written by Hiroaki Sato with character designs by Keiichi Ishikura.
The fifteen episode series is streaming in its original Japanese language with English subtitles as well as the English language dub.
But when that kindly old scientist passed away, poor Key was left behind, lacking even the ability to smile.
Originally released by Viz Media before getting picked up by Discotek Media, Amazon Prime is now streaming one of the stranger and more engaging series that have come out here with Key the Metal Idol.