In the original Japanese story, the Super Aleste is piloted by an ace named Raz and his co-pilot is a mysterious young alien woman named Thi, a prisoner aboard the sphere who harnesses strange powers freed by the constant attacks against the sphere. Thi's role in the game is to fly with Raz into the sphere, weaken its defenses and properly wrest the sphere's power source. The presence of both characters, and thus the game's original ending, were cut from "Space Megaforce" and the European version of Super Aleste.