 "Light gun shooters", "light gun games" or "gun games" are games in which the protagonist shoots at targets, whether antagonists or objects, and which utilize a gun-shaped controller (termed a "light gun") with which the player aims. While light gun games may feature a first-person perspective, they are distinct from first person shooters, which utilize more conventional input devices. Light gun games which feature "on-rails" movement are sometimes termed "rail shooters", though this term is also applied to other types of shooters featuring similar movement. The light gun itself is so termed because it functions through the use of a light sensor: pulling the trigger allows it to detect light from the on-screen targets.
