After getting the Grand Line 3 board, make sure that the PS2's time and date match the actual date and time. Go to "Board Game" then go to "Password". Entered going left to right, and once you reach the 3rd column, go to the 2nd row and press: Triangle, Circle, Circle, Square, X, Circle, X, Triangle, Triangle.
Play each of the mini-games in the "Member's Game" and "Captain's Game" options once. Each mini-game will unlock an option on the Voice Collection menu.
Complete the board game. All the games played will be unlocked in versus mode. Also, new larger boards and all the cards from the board game will be unlocked in the gallery.
To unlock the next map in Board Game, you must accomplish a task in the previous map.