I'd recommend starting with 2 & 3 for the NES. The soundtrack might be my favourite of all video games. It has been played by rockers [0] and orchestras [1].

[0] https://www.youtube.com/watch?v=X-WIBmzETBo

[1] https://www.youtube.com/watch?v=9__sJWMXjE0

https://www.youtube.com/watch?v=jdVpJfXXoFI