GinRei Special OVA
In the first part, Ginrei's dress is stolen, only to be used to fool the enemy. The second part deals with a giant robot made exactly in her image. Finally, the third part concerns Tetsugyu and Ginrei investigating a lost research team in a "wild west" desert setting.
Barefoot Gin Rei
A spin-off of Giant Robo: The Day the Earth Stood Still Ginrei notices that her China dress has gone missing, and she must solve this mystery quickly!
The Mighty Gin Rei
A spin-off of Giant Robo: The Day the Earth Stood Still A wild and crazy adventure involving Daisaku defecting to BF (here Blue Flower), lots of drag and the apparent drinking of a Shizuma drive.
Gin Rei's Blue Eyes
A spin-off of Giant Robo: The Day the Earth Stood Still Ginrei and Tetsugyu take a wild west trip into the desert to find something that is at least semi-serious.