Cobra the Animation: The Psycho-Gun (2008)

Desperate for cash, the Straw Hat Pirates enter a secret race between pirate crews known as the Dead End Competition. There, they must battle against powerful people, including the bounty hunter who wants to kill Gasparde and a climatic battle with Marine-turned-pirate Captain Gasparde.

A girl named Olga is pursued by both the World Government and a man named Mad Treasure, as she is the only one who knows the location of the Pure Gold, a substance that can buy the entire world. Olga ends up sailing with the Straw Hat Pirates, and they journey to find the Pure Gold on the lost island of Alchemi, which is located inside the stomach of a large angler fish named Bonbori.

Relaxing on a cozy beach, the Straw Hat Pirates are taking a rest from their quest. Right until Luffy noticed the Going Merry has been hijacked and sailed off from the beach. This leads them to search the ship and find the thief who took it from them. They ran into a duo named the Theif Brothers, who informed them that their ship was stolen by a group of pirates called the Trump Kyoudai. When they encountered the Trump Pirates, Nami ended up getting kidnapped as well as Luffy's hat. They tracked down the pirates to their base on Clockwork Island. Now Luffy, Zoro, Sanji, Usopp, and the Theif Brothers must reclaim the Going Merry, Save Nami, and get back Shank's straw hat.

The special takes place during the two year before the Straw Hats reunite on Sabody. Luffy is currently in Rusukaina training to get stronger to take on the New World. However the training is interrupted when Hancock's sisters, Marigold and Sandersonia, are kidnapped by the Byrnndi World, a pirate who was locked away on Level 6 of Impel Down but escaped during Luffy's invasion to save Ace, in order to lure Hancock to him and use her as a hostage against the World Government due to her Shichibukai status. Thus Luffy and Hancock head off to confront him and save Hancock's sisters.

After discovering the face of their true enemy, someone who is related to Akito and responsible for the Geass placed upon him, W-0 attempts to return to their base at Castle Weisswolf. However, stranded in Warsaw due to a complication involving their military identification, they are forced to accept the help of local gypsies, allowing the squad to take some time to deepen their bonds. Meanwhile, Britannian advisor Julius Kingsley and his guard Suzaku Kururugi begin working together with the Knights of St. Michael in order to crush the European resistance once and for all, armed with the destructive power of a giant weapon known as the Ark Fleet.

While W-0 is away, Leila and the remaining crew at base find themselves surrounded by Britannian Knightmares. Piloting the Vercingetorix, Shin Hyuuga leads the enemy charge, having usurped the position of Grand Master in the Knights of St. Michael. With her core members unavailable, it's up to Leila to protect her comrades, but this may be much tougher than she realizes: a spy lurking among them is finally ready to reveal himself. Left with no choice but to surrender, Leila arranges a meeting with Shin in order to ensure the safety of her squad. But as negotiations begin to fall apart, Akito and an unexpected ally return in the nick of time to turn things around.

The world's boldest buccaneers set sail for the great Pirate Festival, where the Straw Hats join a mad-dash race to find Gol D. Roger's treasure. There's just one little problem: An old member of Roger's crew has a sinister score to settle.

Space Pirate Captain Harlock and his fearless crew face off against the space invaders who seek to conquer the planet Earth.

As the Straw Hat Pirates sail through the Grand Line, a sudden eruption of geysers beneath the Going Merry sends the crew flying over a nearby island. In the chaos, Chopper falls overboard and becomes separated from his friends. While Luffy and the others land on the far side of the island, Chopper finds himself hailed as the new king by the local animals. However, danger looms as a group of human “horn hunters” arrives. Their leader, Count Butler, is a violin-playing man who consumes horns to gain strength, and he seeks to devour the island’s greatest treasure to inherit immense power. Can Luffy and the crew stop Count Butler’s scheme and save the island? And will they be able to show Momambi that not all pirates are the villains he believes them to be?

The Straw Hat Pirates landed at Asuka Island, home of the most valuable sword in the world: The Seven Star Sword. Which was said to curse anyone who takes it in possession. When they got back to the Going Merry, they discovered that Zoro is missing from his guard duty. Before they could plan out a search party to relocate him. Luffy and friends escape from the port as Marines were on their tail. They found a new place to dock, which is near a village. Whose job is to keep the Seven Star Sword sealed. Soon it was attacked by the Marines, and among them is Zoro. Luffy and the others don't know why he's helping out the Marines. But it all comes to conclusion when Luffy encounters Saga: Zoro's childhood friend from Swordsman training.