 ", involves two monochrome spaceships called "the needle" and "the wedge" (though their appearances have been modified for the coin-op version) each controlled by a player, attempting to shoot each other while maneuvering on a two-dimensional plane in the gravity well of a star, set against the backdrop of a starfield.The ships fire torpedoes, which are not affected by the gravitational pull of the star.The ships have a limited number of torpedoes and a limited supply of fuel, which is used when the player fires his thrusters.