Additionally, he has to destroy four large enemy aliens called the Boss Galag. He has to hunt down projectiles and crashing them on the alien. Like in Galaxian, aliens will jump towards the player. The goal of each stage is to destroy all of the Galaga aliens, which would fly. Some of the enemies can even capture the player's ship using a tractor beam, which can be saved to change the player into a Dual Fighter with extra firepower. The player here takes control of a starship and is on a mission to destroy the Galaga forces in each stage while bypassing enemies and projectiles. The game was released by Midway Games and is a sequel to the Galaxian. Galaga, released in the year 1981, is a type of fixed shooter arcade game which is developed by Namco for the Nintendo Entertainment System.