Secret of Powerful Swordplay! Ability to Cut Steel and the Rhythm Things Have!.Zoro struggles against Mr. 1 as his attacks have no effect on his steel body, but Mr. 1's Dice Dice Fruit enables him to attack by using any part of his body as a steel blade. After Mr. 1 severely wounds Zoro, he becomes able to sense the rhythm that all things have, enabling to cut or not cut at will, and allowing him to defeat Mr. 1 with a single slash.