If you've ever played Marble Madness, then you've probably seen this screen.

You'll notice also that there are these numbers on the ground kind of outside the regular field of play.

If you use the conveniently-placed ramps to get your little marble over there, then you get a nice bonus.

1,000 points times the number you landed on. Pretty awesome for pretty much no effort.

Oh, and this works on the NES port, too.