Before you do this cheat, be warned. This cheat may destroy your save file, mess up the game, or completely disable your N64. Here it is. First, you have to finish the game once. Then, go up to the top of Ganon's Castle. Then, find Gannondorf and fight him until he turns into Ganon. After he knocks your sword away, save your file and restart the console. When you select your file, you will be in the Temple of Time and instead of having your sword, you will be holding a Deku Stick! (WARNING: Do not use it. If you do your game will crash!)