I was looking at various builds and mame cabinets, and saw some with LED lit buttons. Considering building one myself I thought it would be neat to have something like an arduino receiving information about what game is being played, for two reasons: 1 – there could be an led sign across the top displaying the game title and 2 – the buttons that are used for the game can be lit up. So if say Donkey Kong is being played only one button and the joystick is lit up. This would make it easier for people unfamiliar with the machine to figure it out.
K-bert