A pianist has developed a website where he has the complete Super Mario Brothers (the original) score including fingerings. It sounds like he went through a rigorous process:
Karam used professional engraving software and transcribed every pitch and rhythm of the original 8-bit NES game, cross-checking his work with several of the best transcriptions available on the web. He then organized the score into a readable booklet and learned all of the pieces by playing them on the piano every day for several months.
This website is apparently set up to line up with the 25th anniversary of the release of the game.
But perhaps what is more interesting is how this music came to be part of American (and worldwide) culture. I’ve heard people play this music on the piano before and it is instantly recognizable. Some of this is due to the popularity of the game and the eventual Mario series which still is going strong today. At the same time, this game, perhaps more than any other, set off a video game revolution. This music is part of the collective memory for a whole generation.