i genuinly cannot fathom that this exists lmao. litterally how would you emulate an lcd game? how does that even work? do you just manually code it yourself? how does this exist?
From what I understand, this is possible by playing and taking apart actual units and recreating the game logic somehow? Sometimes, like in the case of the Splatterhouse game I contributed to, videos of the game being played are used if the unit's too obscure or hard to come by.
Though take what I say with a grain of salt, as I'm by no means a developer; though it's worth nothing people have been doing these since the late 90's, if Madrigal's emulators are to be believed.