There are multiple randomizers for Super Metroid.
- VARIA Randomizer @ varia.run
- dashrando . github . io
- github . com/Dessyreqt/smrandomizer
(Discourse won’t let me put more than 2 links in my post)
More info at https://wiki.supermetroid.run/Randomizers
The Super Metroid guide should list more than just the one rando as “the rando”.