The Power to Rebound Adversity (逆境をはね返す力) is the 42nd episode of the Katekyō Hitman Reborn! anime series.
Ryohei continues his fight with Lussuria. When the battle seems to favor Lussuria, Kyoko & Hana appear and give Ryohei the support he needs to release his Extreme Sun Maximum Cannon. Later, Tsuna wonders if Lambo can really fight in the next round.