BIGGORON'S SWORD
1. Go to Kakariko Village and talk to the girl that raises cuccos. She will give to an egg.
2. Wait till it hatches adn bring it to Talon who is sleeping and wake him up.
3. Go back to the girl and get a different cucco.
4. Go to the lost forest and meet a person on a tree stump. Give him the chicken. In return he will give you an odd mushroom.
5. Go to Kakariko Village and give the mushroom to the old hag at the potion shop. You will get an odd potion.
6. Go back to the man in the lost forest and he will be gone. Give the potion to the girl there and you'll get a Poacher's Saw.
7. Go to Gerudo Valley w/ the carpenders and give this to them and get Broken Biggoron's Sword.
8. Go up Death Mountain and find Biggoron and he will fix the sword for you after he gets his percription from King Zora.
9. Go to Ice Cave and get blue fire. Use this on King Zora to unfreeze him and tell him about the medicine. He gives you a eyeball frog to deliver to the professor at the lab at lake hylian.
10. Go there and you will get the medicine needed. You only have a few minutes to deliver it though so RUN (w/ epona if you have her) across the field to death mountain and deliver it to Biggoron.
11. He will give you a claim check and wait 3 days and he'll be done. 6 Sun Songs work too.
12. Show him teh claim check and get the biggoron's sword!