Level select
Select the ''New Game'' at the VMU menu, then enter "GYU" as a name but do not select "End". Enter "GYU" as a name for that game again, but do not select "END". Then, enter any letter three times as a name and press X. If done correctly, you will be returned to the VMU menu. You can now create a new game as usual or resume a saved game. The next time you save the game, all levels will be unlocked. Additionally, a choice for the soccer mini-game will appear at the bottom of the level selection screen.