Haja Taisei Dangaiou
English name: Great Planet Evil-Destroyer Dangaio
Genres: Action, Adventure, Sci-Fi
Type: OVA, Episodes: 3
Aired: Sep 28, 1987 to Jul 25, 1989
Studio: AIC, Artmic
Source: Original
Rating: PG-13 - Teens 13 or older
Synopsis:
Four psychic teenagers—Mia Alice, Roll Kran, Lamba Nom and Pai Thunder—are brainwashed by the scientist Dr. Tarsan as pilots of his greatest experiment—the giant robot Dangaioh. But as their memories slowly return, these pilots use their abilities and Dangaioh to combat the tyranny of Captain Galimos and the Bunker Space Pirates. 

(Source: ANN)