I like this idea as a sort of plug in mod that would be universal for any game without a tilt warning. I think it could easily be accomplished without a micro controller, just a fairly simple circuit I think. The tricky part will be how to tap into the game to know when a new ball is served. Anyway, cool idea!

I think for ebc you can simply just detect if a new ball is served since there’s no multiball but some games might be a little trickier.