Galaxian is a clone of the world famous Space Invaders and that pretty much explaines what the game is all about. At set intervals an enemy will move down the screen towards you, escorting a bomber, which is a moment of high danger.
The aliens are classed as Drones, Emissaries, Hornets and Commanders, with those higher up the screen scoring more points when destroyed.
The player moves left and right to aim at an alien, then shoots a bullet up the screen, and the alien it hits is killed. Galaxian is a shoot 'em up in which the player is at the bottom of the screen, with an arrangement of aliens at the top.
