Golden Warrior Iczer-One (Part One) takes place 10 years before the Fight! Iczer-1 anime. It's the story of how Iczer-One is awakened and escapes the Cthulhu spaceship just before it is taken over by Big Gold. Iczer-One crashes down on the planet Ishua with no memories and no knowledge about herself or her past. There, she is forced to fight against Magenta, one of the Cthulhu's commanders who is in charge of the Cthulhu's invasion force on this world. Note: "Part two" was never writen. (Source: Animanga)

Comic Gunbuster is a compilation of short stories involving the main characters from "Aim for the Top" which take place during the time of the first OVA. Some of the stories include Kazumi Amano's marriage to Coach Ota and Noriko and Jung playing golf on the Moon. (Source: Anime News Network)