This is a sequel to my last demo, 1-2 framerule save setup: https://youtu.be/XwfMC4v_6-8

Since my 1-2 setup has already been used for practice in 4:55 attempts, and a super hard 8-1 framerule has already been saved by several speedrunners, I did some tests on how real-time speedrunners can save another 4-2 framerule, which can be the last framerule possible for real-time speedrunners to save.

Here's the best and only way: do a corner clip first, touch the ground inside the wall for one frame while pressing B, use 1-frame jump to get out from the wall, and the rest is pretty much the same as the common strategy, except more precise.

If you do everything right like in the video, you'll have 3 frames to spare. If you do an extra backward jump after entering the pipe, maybe 4.

I wonder if anyone would be crazy enough to put this strategy into practice, but since FPG, 1-2 framerule, 8-1 framerule already done in real-time, one can never underestimate real-time speedrunners, so who knows?
...
https://www.youtube.com/watch?v=OcVG8IDstuA