How to unlock the true 100% ending - Paper Mario: The Origami King

Are you looking for the true 100 percent ending to Paper Mario: The Origami King? It

Paper Mario The Origami King: Secret Ending! (102%)

Ending Explained, How to Get the Secret Ending (True Ending)

Ending Explained, How to Get the Secret Ending (True Ending)

Paper Mario: The Origami King Ending (and Secret Ending) Explained

Paper Mario: The Origami King – Give It a Chance to Make an Impact – Matthew Floyd

Paper Mario: The Origami King - Secret Ending (100%) + Final Boss

Secret Ending - 100% Completion Guide

Bowser's Fury: How to Unlock the Secret Ending

Paper Mario: The Origami King — How to unlock the secret ending

Paper Mario: The Origami King Ending Explained

The bottom image seems like a pipe with the number 3 on it, leading to the speculated fast travel room with other pipes. This further proves the pipes in the above image

How To Get The Secret Ending in Paper Mario