To find this challenge go down for more stuff from the chapters selection. Then jump to the wall just above the path to the credits. There is a secret corridor. You will find two challenges. This guide is about the Papyrus challenge.

• You play as Mi and you cannot change to the ball.
  
• It's impossible to get to the exit without traveling through the disorder.
  
• You have to get a dimension crystal. One of them can be easily found in some puzzle area with a lot of red and blue buttons. You must press a green button and quickly go right and up to get the crystal.
  
• After you enter the disorder, go two rooms upwards. The exit is at the top of the map near a skeleton of a big snake.