So let's say you're playing a round of Dr. Mario and you screw up your puzzle
Possibly even worse than I've done so here. What do you do?
Well, you could just keep hitting Down on the Cross Pad to fill up the center columns with capsules and end your game, but that's way too slow.
Even better would be to hold A + B + Select + Start. Done right, you'll be kicked back to the title screen!
This is way better than just walking up to your NES and hitting the reset button, mostly because you don't have to actually get up walk the up to 6 feet to wherever your NES is.