TITLE:"Disqualified from the WDC!? Heartland's Assassins Droite and Gauche" is the thirty-seventh episode of the Yu-Gi-Oh! ZEXAL anime. It first aired in Japan on December 26, 2011.
DESCRIPTION: During the second day of WDC preliminary, Flip, who slept thorugh the first day, decides to collect Heart Pieces using his "tricky ideas" expertly, however it was discovered by Droite and Gauche, the members of tournament operation committee. Due to his violation to tournament rules, Flip will be disqualified from the tournament. Hearing from a classmate what he did, Yuma rushes to help him anyway, despite Astral being cornered inside the Emperor's Key byan old enemy, preventing him from using his "Numbers".