(I was low-key too lazy so I stole from the wiki lmao)

Luffy, about to fall backwards to the ground, remembers his promise not to fall until he beats Lucci. He stands up, arms outstretched, and lets out a blood-curdling yell. Lucci, who is bloodied and breathing heavily, turns his head to see Luffy standing there and is shocked. As he glares back at him, Luffy remembers all the times people claimed that Robin would be the Straw Hats' downfall, including comments from Admiral Aokiji and Lucci himself. Luffy lands a Jet Pistol on Lucci. Lucci flies at him, and he tries a couple more Jet Pistol's, but they miss.

Lucci tries to use Rokuogan but Luffy moves away. Just then Lucci's tail grabs Luffy, holding him in place. Lucci uses The Largest Ring: Six King Gun point blank, which devastates Luffy. However, Luffy uses Jet Gatling. Lucci, seeing a huge attack coming, barely has time to use Tekkai and Lucci gets pummeled and slams into the wall. Luffy increases the power of the Jet Gatling even further hitting Lucci so much that he is projected through the wall.

Rob Lucci has been defeated.