TITLE:"The Deadliest Ninja Arts! The Most Terrifying Ninja!" is the sixteenth episode of the Yu-Gi-Oh! ZEXAL anime. It first aired in Japan on July 25, 2011.
DESCRIPTION:It's a Duel against Rokujuro's former disciple, Yamikawa! Yamikawa draws his "Ninja" monsters, pinning Yuma down, but believing in the power of his friends, Yuma must continue this battle to the death! But, Yamikawa Summons his Trump Card, "Number 12: Armored Ninja - Crimson Shadow"! However Yuma continues to believe in the power of his friends, but can this possibly lead him to win the Duel!?