Future Hibari has arrived to the battlefield, stating he would bite Gamma to death, also stating that he was in a bad mood. Hibari and Gamma release their Box Weapons, Roll and Elettro Volpi, respectively. Gamma wonders how Hibari can fight against his Mare Ring with an inferior ring, when suddenly Hibari tosses away a broken ring and replaces it with another. While their Box Weapons fight, Hibari and Gamma continue to trade blows. Gamma gets hit by an attack and compliments Hibari afterward, Hibari replying that he dodged the brunt of his attack well. Gamma then fires a shot that doesn't allow the target to dodge, but Hibari only allows one to hit him, taking away most of the damage with defensive Dying Will Flames. Hibari then charges forward, Gamma jumping up, but pierced by Roll's spiked ball in the back, with his Elettro Volpi pierced as well. As Hibari is about to finish Gamma, Tsuna arrives, Hibari commenting that they were late, and Gamma expressing his surprise that Tsuna was alive. Hibari then strikes Gamma with a fatal blow.
*Note: Bold + Italicized = First Appearance