Attached is the sheet music and the Pico-8 cart (thanks to Trasevol_Dog for the request)
My goal for these has been to try and make them sound as close to the original as possible. Most NES music has a 4-channel texture, so porting it into Pico-8 is fairly straightforward (though triplet subdivisions are never very elegant) .
It would be interesting to try arranging music from more contemporary games. I'll probably make that the theme for the next poll.
Question - I'm thinking about topics for future Pico-8 tutorial videos. Would anybody like to send me some of their Pico-8 music? I could use your music as an example and talk about techniques for developing and polishing it. It'd also be a good way to get feedback on your own work. Comment below or message me!