Did Super Mario Bros. 3 (NES) needed a save/password system?

[JackHandy]

My save feature back then was to just pause the game and leave the NES on 24/7. lol.

But Mario 3 is short, so it really isn't necessary, imo. You can beat that game in under an hour if you get good enough. Even less if you use the flutes like most of us did back in the day.