A reset command is years ahead of its time. I've probably gotten the most usage out of it doing caravan modes on shooters while going for high score. I thiiink PS1 was the next console to have a reset command, though perhaps it wasn't as universal? All 4 shoulder buttons, select and start. I know Dreamcast had a universal one with all 4 face buttons and start. But PC Engine was the console trendsetter here, certainly.