In the year 2300, the human race created an Earth federation government and spread out into space to begin colonizing the surrounding planets.

The player takes the role of a young soldier who was stationed with the Rayieza unit on the planet Mars.

Though the game is largely a faithful port of the PC version, some arrangements were made, such as the addition of a side-scrolling screen when the player lands on a planet's surface, or Rimi being able to use psychic powers.

Game designer Makoto Kuba stated in an interview that the name was changed due to trademark issues.

[1] The theme song for The Earth Fighter Rayieza was included in an album titled "Enix Game Music".