Look, ma, no hands!
I came across this video today. I used to play this game all the time, but I never noticed this. Apparently you can play the entire level by just letting Mario drift along without ever using the controller. Kind of like that feather at the beginning of Forest Gump, but with more coins and Yoshi.
The Only Mario Level That Plays Itself - Watch more free videos
That SO ROCKS! That was about the end of my video game career…but I remember it well!