Title:"Shark Torpedoed! The Nightmarish Fan-service" is the fifty-seventh episode of the Yu-Gi-Oh! ZEXAL anime. It first aired in Japan on May 28, 2012.

Description:The awaited match between Shark and IV finally begins. They Summon their respective "Number" cards, intensifying the Duel. However, after a revelation from Tron, IV brings out "Heaven's String" and unleashes an onslaught, inflicting massive damage to Shark.