The Legend of Zelda: Ocarina of Time / Master Quest Cheats

As a grown up when you catch the fisherman's hat. He will get mad at you, but from then on whenever you see him he will be bald, without his hat. This can be very hard, and is usually best if you stand about where the sign is, and then just keep trying to catch it

When you enter the Hyrule Castle courtyard, look at the right window. If you look inside the window, you will see paintings of Mario, Peach, Yoshi, Luigi, and Bowser.

If you look at the broach that Malon is wearing, you will notice that it is actually Bowser's face.

After you gain the Master Sword and become adult Link, go to the lost woods and take a left to the skull kid. He will attack you because you are now an adult, so attack back with regular sword attack. Do not use anything strong and dodge his attacks, if you die or use any strong attacks, he will backflip out of there. Once defeated, he will leave a very large red rupee behind, which is bigger in width and height then Link in his adulthood.