Another world :
At the "Push Start Button" screen, press Triangle, Right, Left, Triangle. If you entered the code correctly, an icon will appear in the upper right corner of the screen. Select puzzle mode, then the "Arcade" option to access more puzzles.
Bonus characters :
At the "Push Start Button" screen, press Triangle, Left, Right, Triangle. If you entered the code correctly, an icon will appear in the upper left corner of the screen.
