I've only played through the first 3 games, and then recently the latest (main) game.
Best fan site:
https://metroiddatabase.com/game/metroid/.If I get this done to some level of my own satisfaction, should contact them.
Sub-page with a deep dive into level/map data:
/old_site/m1/lvldata.phpThe Super Metroid map which I hand-created with primitive image editors in the mid 90's:
SuperMetroidMap.pngI first found slightly older iterations hosted here:
https://jansenprice.com/metroid/met3_sm/Although I think they did not get them from me directly, since one is a JPG with lossy compression; I recall even then my dislike of the noise it creates. I believe I only stored them as BMP or GIF, since I certainly did not know about PNG at that time. Subsequently found the "final version" which I created (yup it's a GIF) hosted at imgur.com/n13rJav; such an annoying website but whatever. I just stored as a PNG
Metroid games and IP are copyrighted by Nintendo.
All content hosted on this site was created by one author, who freely releases it under Creative Commons license CC0 (Public Domain). See https://creativecommons.org/public-domain/cc0/ for details.