This is a servo laser turret controlled by two potentiometers for x and y planes. It has two playing modes. Manual mode lets you control the laser and hit the targets within a time limit. When you hit the target, a photoresistor, a small video game controller vibrator vibrates the box and an LED simulates an explosion by flashing a couple times. Automatic mode lets you move the laser to the targets and save their locations, and afterwards, moves independently to the different targets and hits them with the laser.”