While I was surfing the internet, I found a guy pointing towards THIS webpage >>> hypernova.amarok-shadow.com/MyStuff/oot_debug/ and said if anyone needed Debug Rom help, to go there. Now it is currently down but with the wayback machine... wow, there's so much crap about the debug rom. I though I'd share it^.^
I'm surprised my update didn't spread. I copypasta'd that document a long time ago on my site and updated it to include more relevant information (and corrections/missing info updates are welcome if anyone wants to provide it). It's also the easiest to view as it's a literal carbon copy of the original HTML instead of provided through the filtered CSS of other web archive sites. You can view it here if you like.
Also, even though it's incredibly old, it's still pretty much the first document I recommend newbies to Zelda modding check out, as it provides a fundamental understanding to the Debug ROM, which is essential for those who wish to try their hand at modding. Just goes to show that age doesn't necessarily deteriorate the quality of information.