> Typically, a light-gun game will make the screen flash white when you pull the trigger. The console will then check the light sensor in the gun to read when it goes from perceiving black to sensing white as the beam reaches the part of the screen the gun is pointing at. The console can then work out how long it took from the start of the screen flash to the moment when the gun sensed white, and that timing reveals where the gun was pointing.<p>Is that really how it worked? My understanding was that when pressing the trigger, the game drew the targets as white rectangles on a black background and a light detector in the gun was checking whether it's pointing at white. That's why an easy way to cheat was to point the lightgun at a lamp
Seb Lee-Desile built a laser version of Duck Hunt a few years back<p>Played it at a conference and it was good fun!<p><a href="https://twitter.com/sassquad/status/847564268404748288" rel="nofollow">https://twitter.com/sassquad/status/847564268404748288</a>