Episode 551

"The Decisive Battle Begins - At Gyoncorde Plaza" is the 551st episode of the One Piece anime.

Short Summary
Neptune's army put up an attempt to stop Hody and his pirates from reaching Gyoncorde Plaza but seeing the king held hostage prevents them from attacking. The civilians of Fishman island climbed up the walls of the plaza to see the army defeated with their King held by the New Fishman Pirates at the center of the plaza. Jinbei, Shirahoshi and Megalo have finally left the sea forest to reach the plaza. Vander Decken cries over Shirahoshi's rejection and shaved the top of his head in his grief, but them starts laughing exclaiming that he's got an idea to destroy everything. The three princes have finally reached the plaza where they easily defeat the sea animals. Fukaboshi then gives a speech of how the people of fishman island forget their discrimination by humans to go for a better future, but Hody shrugged it off and his officers attacked the three princes while being enhanced by Energy Steroids. The princes never stood a chance and were soundly defeated, with hody laughing at his victory over the royal family.

Anime and Manga Differences

 * The following scenes are shown in the anime:
 * The Neptune's army fight with the Sea Bear in the plaza.
 * The arrival of the New Fishman Pirates in Gyoncorde Plaza.
 * Jinbe, Shirahoshi, and Megalo leaving the Sea Forest in heading towards Gyoncorde Plaza.
 * The fight of the New Fishman Pirates' Officers with Fukaboshi, Ryuboshi and Manboshi.
 * In the manga, the ministers and the soldiers with them were wiped out fighting a sea beast. However, the anime shows that Hody is the one who deals the defeating blow to them.
 * In the manga, the scenes of the conversation of Decken with his subordinates happens inside the Noah, but in the anime happens in the Flying Dutchman.
 * In the manga, a citizen mentioned that the princes initially had the officers beaten, but the anime shows that the fight has been rather short and the princes are swiftly defeated right after the battle began.