Gameplay
The gameplay in Police 911 can be considered more interactive than most light gun games; instead of merely standing in one place and shooting enemies before you are shot, the game uses infrared sensors to determine a player's location; through this, the player is able to dodge around (with the knees, while standing on the pad), duck to avoid bullets (and reload), and lean out to maximise cover and get a better shot. This is not foolproof, however; enemies will continue to shoot while you're hiding, so it's possible to rise up and immediately get shot, if you're not careful. Also, like Time Crisis, the timer is continually running down, so one can't hide for very long.
Read more about this topic: Police 911