Bullet time is a special and visual effect that refers to a digitally-enhanced simulation of variable-speed (i.e. slow motion, time-lapse, etc) photography used in films, broadcast advertisements, and video games. It is characterized both by its extreme transformation of time (slow enough to show normally imperceptible and unfilmable events, such as flying bullets) and space (by way of the ability of the camera angle—the audience's point-of-view—to move around the scene at a normal speed while events are slowed).