Please, if anyone has some spare time TAS this.

Possibility n1: On the part of the level where we have to slow down to jump over the pipe, why not jump backwards do a pipe clip on the upper corner of the pipe and continue.

Possibility n2: Same thing but instead of a pipe clip on the upper corner do a Blazeit type of clip.

First of all, you can TAS it yourself :) and for something obscure like this, I doubt anyone else would do it - not to sound mean, but nothing's stopping you from playing with these scenarios yourself - could be fun to learn more about the mechanics of the game by messing around with tool assisted runs.

Second, you have to slow down to clip into walls or pipes, so it would be slower than the normal strategy where you have to slow down slightly to make it past the piranha plant

Clipping into the pipe would be slower than the slight slowdown required to clear the plant

Thanks for replying Darpey, I don't have any way to TAS since the unic way I have to play this game is with my Wii U because I don't have a computer.

Another problem with clipping the corner of the pipe is that this could happen: https://imgur.com/CAgiNCt