TITLE:"Begin! World Duel Carnival!" is the twenty-sixth episode of the Yu-Gi-Oh! ZEXAL anime. It first aired in Japan on October 10, 2011.
DESCRIPTION:The World Duel Carnival, where Duelists from around the world will wage heated battles, is swiftly approaching. Yuma, seeking to fulfill his dream of becoming "Duel Champion", excitedly rushes to the tournament. But what will Yuma do when he has no Heart Pieces, which serve as the proof of participation for the WDC? Meanwhile, Mr. Heartland and Kaito make their preparations to gather the Numbers that are likely to assemble before them in this tournament.
This episode also marks the change of the card backing used by the characters, though it remains to be seen if the change is permanent.