Using a fake “5-ton” hammer, Usopp hits Mr. 4, who easily recovers. Miss Merry Christmas, tired of Usopp’s antics, attacks him, but Chopper figures out their weakness: all of their tunnels are connected. Chopper then points Lassoo’s head into a tunnel, causing the fired bombs to create a massive explosion, allowing Usopp and Chopper to escape.
After Luffy emerges victorious from the rubble of Arlong Park, he declares Nami his friend. The villagers celebrate Arlong’s defeat, but Nezumi and the Marines arrive to seize Arlong’s treasure. The Straw Hat Crew beats them, and Nami retrieves her money before giving Luffy his hat back. Nezumi then reports the Straw Hats to Marine…
Responding to a distress call, Luffy, Zoro, and Sanji land on an island and discover that Ain has de-aged everyone, including them and Law (into a baby), into children. They and other child characters, including Sabo and Smoker, defeat Ain and a giant robot. When everyone returns to their original age, Law wakes up naked,…
The Straw Hats and Heart Pirates help Vivi find a rare herb for her father. They defeat Wapol and his lackeys after Nami and Vivi free their trapped crewmates. After the fight, Law receives a rare coin from Vivi, and Nami makes Wapol create toys for her to sell.