Pokemon Legends: Arceus players will be able to take on Request 66 (The Sea's Legend), once they get past Mission 10, The Lordless Island, and have made their start with Mission 11, Scaling Perilous Heights. If players go inside Galaxy Hall, they can go into Laventon's room to check out the Request board. The Sea's Legend comes from the professor himself and will require multiple steps to complete. Players should expect to spend at least 30 minutes total to get to the end of Request 66 and claim its reward: the Mythical Pokemon Manaphy.