Metal Storm is an action-platform video game developed by Tamtex and published by Irem for the Nintendo Entertainment System. It was released in North America in February 1991 and in Japan on April 24, 1992. The story takes place in 2501, when a laser weapon at a defense outpost on Pluto has malfunctioned and begun destroying the Solar System. The player takes on the role of the M-308 Gunner, which storms into the defense base in order to activate the self-destruct system before the laser gun destroys Earth. The M-308 is equipped with a gravity control device which allows the player to flip between the floor and ceiling, a main feature of the game. Metal Storm received positive reviews from gaming publications.