Polaris is a shooter released by Taito
Polaris is a 1-player, single screen shoot-em-up, baring many similarities to Taito's most famous shoot-em-up, "Space Invaders", in which a player takes on the role of Commander of a Polaris class nuclear submarine. War has been declared and the Polaris' mission is to defend the country from enemy attack.
Players control the submarine which can only shoot missiles upward. The goal of the player is to destroy all of the airplanes in each level while avoiding bombs dropped from the aircraft, as well as mines launched by enemy submarines and depth charges dropped from boats that speed by.