This trick requires a sword and a friend. Go to the tower in the middle. To the left as you are facing the crashed ship will be a ledge. Go to the ledge and jump on your friend's head to get on the sloped part. Then, have the person who is not on the slope sword cancel up. Do this by aiming at the opposite player and pressing X + R with the sword. After doing this, walk to the top of the slope. Walk on the flat part until you reach the end. Upon reaching the end, have one player jump on the others then perform a sword climb. Do this by having the player on the bottom press B + X rapidly and have the player on top jump repeatedly until you reach the top. As you climb up, move slowly to the left. When you reach the top, press Forward.