In the year 2145, humanity has built a large number of space facilities, such as the research center on Mars, the mining station on Earth, and the military base on the Moon. The research center is a place where scientists and engineers are able to research new technologies and develop their own creations.

However, the world is dominated by demons, who have their own world and are independent of humanity. The player, who is a member of the elite commando group, must go to Mars to fight against the demons.

There are two types of weapons in the game: the first is the standard weapon, which the player can use to fight enemies. The second is the special weapon, which the player can use to fight against specific enemies.