Completing The Legend of Zelda: The Wind Waker unlocks several features for subsequent playthroughs. Here are the details:
Deluxe Picto Box (DX Camera)
In the GameCube version, after completing the game and starting a new file, Link begins with the Deluxe Picto Box, allowing color photographs. In the HD version, the Deluxe Picto Box is obtained by completing Lenzo’s assistant quests on Windfall Island.
Outset Outfit
Upon completing the game and starting a new file, Link can wear his initial outfit (blue shirt and orange pants) throughout the adventure instead of the traditional green tunic.
Aryll’s Alternate Costume
In a second playthrough, Aryll wears a pink dress with a skull design, differing from her original outfit.
Hylian Language Translation
After completing the game and starting a new file, characters like the Great Deku Tree, Valoo, and Jabun speak in English instead of the ancient Hylian language.