Is Giant Robo Gaiden Ginrei hentai?

OVA · 1994 · 3 episodes · PG-13 - Teens 13 or older

Comedy, Ecchi, Mecha, Parody, Sci-Fi, Shounen, Super Power

In episode one, Ginrei's dress is stolen, only to be used to fool the enemy. The second episode deals with a giant robot made exactly in her image. Finally, the third episode concerns Tetsugyu and Ginrei investigating a lost research team in a "wild west" desert setting. (Source: ANN)