In a new Iwata asks roundtable Nintendo discuss the history of the NES and Mario's original name before Jumpman and Mr. Video.
Super Mario Bros. turns a youthful 25 this year in Japan, and despite being one of the biggest, if not the biggest, selling video game franchise to date Mario and co had a fair few obstacles to overcome in the early days of the NES.
That's the way it was at first, but even as games' visual capacities have increased, those basic lines have never changed. I think that may be why, even after 25 years, everyone still loves Mario.