The fast 4-2 fr is super hard because it's hard. Considering as the infamous level of the game or I could say 4-2 is infamous level. TASers is the one who is gonna find glitches that can we do and can execute very well.
I think the next framerule to have was 8-1 Flagpole Glitch. Very hard.
Video Capture is really a good thing in hand, but it's expensive if you don't have many money in your pocket. I experienced that flash screen problem when I record my TV with a cellphone. If you use an emulator on your PC, just download a screen recorder and you good to go now (I prefer OBS for recording and you can also stream with that software). And I also suggest GV-USB2 to record your screen directly into your PC (may also suggest to buy Composite splitter so you can split the signal into your TV and your PC if you use Composite video). If you don't have money then just record it with your phone or any device that can record a video.
Welcome to the community! Feel free to question anything and Good Luck!
And if you are recording at 60 FPS at a low end CPU or just have 1 or 2 cores, expect your emulator to lag and straight down to about 45 FPS. It decrease the FPS because the CPU can't handle the loads. And if you lag, put the FPS down to 30 (in your recording software ex. OBS) on the settings. I suggest playing at Nestopia because the input lag is much not notice.
I think the 4:55.580 is the best possible time (credits to Bismuth). So technically it's not dead. And of course everyone can get the WR by just tied world records.
Oh ok. And I know it's hard. The only WR I know that uses the fast acceleration (in 8-4)is by kosmicd12's 4:56.462.
I think the speedrunning community is the kindest community ever for my observation. Good luck in the way of speedrunning ?
But why the world record(for glitchless) didn't do the fast acceleration???
Okay, I'm into it now.
2x bump method is hard as heck. Even two of that method is hard to do. But I think the elevator bump is easier than pipe jumps because of the piranha plant.
Pretty much we still stuck at this framerule(1-1 FPG,1-2g,4-1 FPG,4-20 blazit,8-2 BBG,8-3 FPG)and a perfect 8-4 (44s 476ms by GTAce99). Maybe in a future we will get another Framerule again.
I tried this in a TAS and it work that way. I use thepellson romhack back in 3 weeks ago and got the 2x 10 pixel jump.(I still don't get the 11 pixel jump)