You are talking about the LED tricks plugin I made a while agoReally any game with health could be good to tie to the LED, have the LED green when you have full health, then cycle down to yellow, orange, and red as you lose it. I know such NTR LED plugins have been possible for some time now considering there was a topic on it a year or so ago with a proof of concept for Mario Kart 7 where in the Time Trial mode if you hit a ramp the LED would flash. A rather random thing to showcase the ability I suppose, but a proof of concept none the less that such things are definitely possible.
Right now, I'm using the LED to warn the user when a blue shell is approaching in MK7