Not anything specific, but I thought I would throw this out anyway. I recently watched a video explaining how the game loads warp zones and how the minus world glitch works. In case you don't know, the glitch is caused by having the game load the wrong warp zone (4-2 underground) and consequently takes Mario to a glitched world. It then dawned on me that if a glitch similar to this allowed you to load the 4-2 aboveground warp zone underground, you could take the left pipe and be taken to world 8, entirely skipping world 4. In order to do this we would have to trick the game into thinking we were aboveground, which doesn't seem possible. But if we can figure out a way to do this, then I do think that such a skip would become possible. Again, it's only a theory

Pretty self explanatory. Please post the format in a reply.

When I'm running minus world and reach the end of -1, I sometimes find the flagpole in a glitched state where the actual flag is nonexistent. When you grab the pole, Mario just jumps off and "floats" over to the castle, which ultimately saves 3 framerules (1.05 sec) over the version with the flag. The thing is that whether the flag shows or not seems to be completely random. I think it might be framerule dependent, but does anyone know for sure?

Sometimes when I try to hit down to go into a pipe, I cause the controller to input down-left or down-right. This happens when I press the left or right side of the down button on the D-Pad. In this state Mario can't go down the pipe, so he walks off of it. I lose runs in 1-1 all the time to this, and occasionally in 8-4. Example: https://imgur.com/a/v3kHkWT In order to avoid this, I have to put my finger on the very center of the down arrow on the D-Pad, which can be hard to do when your finger moves so quickly from one direction to another. It's a really annoying problem and I can't find a solution. Does anyone know how to avoid this?

What are the chances of getting a bowser axe pattern in 8-4 that you can't jump through?