It really was that simple.... Simple LED circuit from pin (4) controlled by the SPDT toggle switch. Game ignition is mapped to another pin (7), which sends a 500ms pulse to the game when the pin 4 switch is opened or closed, based on switch state change detected by pin (2). Does exactly what I wanted it to.
Thanks for taking the time to reassure me of the right direction. I was just trying to overcomplicate things.