Final gallery items
Unlock all gallery items except for the final five.
Then, enter the gallery menu and press [Up]x2, [Down]x2,
[Left], [Right], [Left], [Right], [X].
The game will exit the gallery menu. Press [Circle] to enter
the menu again. The sound of a coin will confirm correct code
entry.
Resort songs
Press [Start] at the song selection screens to
sort them in various orders. Press [Start] repeatedly to
cycle through the sort types.