What is the code to unlock the final door in Red Dragon Island

To get to shogun in Red Dragon Island you need to get the piece of the haiku on each part of the castle, collect them, and then defeat all the guards with onions, then get the piece on the final floor. Go to the right and climb up the wall, get the one guard and jump to the other side as fast as you can (cut the rope so you fall on it). The secret code is ''my new clothes make me feel different I must look like someone else."