These days, Nintendo employees like Shigeru Miyamoto and Takashi Tezuka are well known with gamers, but back in the days before the internet came along and enriched/ruined everything, these individuals were largely mysterious to the average player.

That's what makes this 1990 visit to Nintendo's Kyoto HQ so interesting. Filmed by the BBC's Money programme, the short clip shows how levels were created in Super Mario Bros. 3 and features a fresh-faced Miyamoto, who talks about how enjoyable it is to work for the Japanese company.

These days, Miyamoto's stature in the industry has grown even more, making him one of the most famous gaming celebrities on the face of the planet. Nintendo no longer owns 80 percent of the North American games market, however - but perhaps we'll see that happen again in the not-too-distant future?