Unlockables
Second Quest
After defeating Ganon and returning to the title screen, your save file will show Link holding up a Triforce. Start a new game on this file and you will begin playing the Second Quest.
During the Second Quest, many dungeons and caves are in new locations, and the dungeons themselves have all changed. A few new enemy variants appear, and you can run into crooks who will take your Rupees or one Heart Container permanently. You get a slightly different ending if you complete the Second Quest.