The Legend of Zelda: The Wind Waker/Second Quest

After the game has been completed once, it can be saved in a new file as the second quest. This is nearly identical to the first, except:
 * Link and Aryll wear different costumes
 * The difficulty is slightly greater
 * You start the game with your Picto Box, if you have one

The main advantage is that you can take photos of bosses and characters which you couldn't the first time through, because you didn't have the Picto Box, and they can then be turned into figurines.