GG Aleste is a shoot 'em up released in 1990 for the Sega Game Gear. It was only released in Japan and is one of the few Compile Game Gear games published by Compile rather than Sega.
Year 2065 AD. Suddenly, a group of mobile weapons appeared in the jet black space. They attacked the planet and isolated the space troops in the colony under construction. While most soldiers are desperate, there are those who do not give up hope.
Genius pilot, Ellinor Waizen. A special fighter specially developed for her, GG Aleste, was secretly brought into the colony. Now Ellinor, to rescue Earth, hops into the GG Aleste and heads into battle.