I managed to find all the answers to my questions right after posting them :D . Legacy is not hard at all anymore, after I got the Spazer. Is Legacy supposed to be harder than the actual one, or is it just a mixup of the levels and items?
It's definitely the easiest of all the hacks by a long shot. It's got some tough parts (especially Lower Norfair!), but it was definitely designed for someone who had maybe played through SM once and was looking to get a breath of fresh air.
If you want some challenge, I highly recommend Metroid Limit, found on the same page as Legacy. It walks the line between hard and infuriating very well.
If you want some challenge, I highly recommend Metroid Limit, found on the same page as Legacy. It walks the line between hard and infuriating very well.