After multiple years of me considering this trick to be way too difficult for me to learn, I finally took the time to figure out how to nail this trick and do it RTA. This makes me the 7th human to get this framerule full level! I first learned how to do the trick on an original NES console with a controller, and then I started grinding away at the trick on emulator with a keyboard. Once I figured out the basics, I started to get consistent at the trick much quicker than I initially anticipated, as I only just got the floor clip + full fpg from before the setup just a few hours I got it full level! I'm so proud of myself for being able to push through everything and finally start to learn what I thought would be impossible.
If you had asked me just a month or so ago if I had ever thought of returning to Minus World Ending, I would've immediately said no without a second thought. However, things could be different now. It looks like I might be doing some 2:31.4XX attempts decently soon :)
This was performed on Nestopia UE