Using the mouse to move the ship he will have to eliminate all the chickens and little chicks that appear on the screen. In Chicken Invaders the player has to take on the role of a pilot that has to defeat the hordes of space chickens that are trying to invade Earth.
And despite being a genre that many people wouldn't risk there money on any longer, it is still providing great titles nowadays, like Chicken Invaders. The Shoot'em up genre was one of the most of the most extended during the decade of the 80's and the 90's.