I've been streaming attempts at replicating this video using Speedrunning techniques. Here are a few things that I drew from it:

1. I can smooth out the 4-1 that PMniac said was cringy. By that, I mean that the level can be performed with one continuous run, only jumping when necessary

2. 4-2 is a real pain in the ¤¤¤ to get on the vine (I think that the jumps required once the vine is out is frame perfect). I don't think that even attempting the wrong warp in the level would help ease it.

3. This was largely done glitchless (the one area where any form of glitching is performed is 8-4 and that was to avoid a coin on the pipe-jump.

So any attempts to perform this category using speedrunning techniques CAN and WILL reduce the overall time as shown in the video, HOWEVER, I do like to stress that there will be some areas in the game where you will have to sacrifice time and speed for accuracy, so be careful.

Not mine, but I would like to see this run pushed as a potential category, and so I would like to start attempts at it. If I can get a somewhat official time so that I have a time to beat, that will be most helpful.

I can't jump backwards consistently, but I will give your script a spin.

Not submitting this officially for obvious reasons (I didn't complete the game), but I want to know by the community how well I did for a first time speed running the game. Any advice will be received.

I'm relatively new to speed running the game, and I have heard a lot of talk about frame rules and how they influence the game, in particular, 8-2. I have heard Darbian explain it as if it were a bus leaving a station every 21 frames to go to the next level, but I don't really get that explanation.

Can I get a plain English definition of what frame rules are, and how they precisely influence the game?

My two poisons of choice are Super Mario Bros. and Mike Tyson's Punch-Out!! for the NES for now. Just trying to get my groove here.