Space Megaforce, known in Japan and Europe as Super Aleste (スーパーアレスタ, Sūpā Aresuta), is a vertically scrolling shooter developed by Compile.

Super Aleste also offers a "Short Game", with segments of the regular levels; the emphasis is on scoring as many points as possible.

In the year 2048, a large mechanical sphere falls from space and starts attacking major cities around the world.

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.

The presence of both characters, and thus the game's original ending, were cut from Space Megaforce and the European version of Super Aleste.

[5] A manga based on the game and written by Kubo Muneo, was published by 'Monthly ASCII Comic' and released on February 22, 1993 in Japan.