Source: Wikipedia, "Qwak! (arcade game)", available under the CC-BY-SA License.
Qwak! is a 1 player arcade game by Atari Inc., originally released in 1974. It simulates duck hunting, where by players fire at flying on-screen ducks using a rifle with a light gun attached to the end.
One duck flies across the screen at a time, giving the player three shots to hit it. A hunting dog runs out and collects the fallen prize if the player was successful with their aim.