/vr/ - Retro Games

There’s tons of sources out there for how the NES Zapper works, by detecting a bright light when you pull the trigger, but there’s virtually zero information on how Guncon games work. We know it uses composite sync, but how exactly does it tell where the player is aiming? It can tell where the gun is aimed at the TV in real time without flashing, so how? My guess is that it measures the time between vertical blank and when it sees the bright point from the laser, but I can’t find any info to corroborate this. Any Anons have any understanding of this?

Also light gun game general. My favorites were Point Blank and Time Crisis.