From TV Animation – One Piece: Big Secret Treasure of the Seven Phantom Islands

Luffy and his crew are sailing when a storm hits. The storm destroys the ship, and the crew members are scattered across an island, away from each other. Luckily, Luffy finds a bird who acts as a guide for the crew so they can reach each other. They eventually encounter the Simon Pirates. In various RPG battles, the Straw Hat Pirates eventually managed to defeat the entire Simon Pirates and leave the island