Biggoron is a master craftsman who lives at the top of Death Mountain. This place is near the Great Fairy Fountain. As you talk to him, he will tell you who he is and that he needs help. He is already blind and only eye drops can bring his vision back. You must obtain it for him so that he can continue making swords. There are a number of things you should do before you will be able to obtain Biggoron’s Sowrd. This is after rescuing Epona and after obtaining the Hookshot or Fairy Bow. It can also be done after you have awaken as Adult Link and after unfreezing King Zora. However, there is no need to visit the blind craftsman before you begin the quest for the sword.

Proceed to Kakariko village and talk to the Cucco lady at daytime. She will give you a bottle to collect her Cuccos. You must accept her request to train a fresh and unique type of Cucco. As the lady gives you a Cucco Egg,, you can make it hatch fast by using the Sun’s Song to advance the clock 24 hours. You have to wake up Talon from deep sleep by going to the house near the stairs that end up to the Bazaar and Potion Shop. He has been sleeping since Ingo and Ganondorf chased him away. You will obtain a blue Cucco that seldom crows after showing the Cucco to the Cucco lady. The blue Cucco’s name is Cojiro.

Rush to the Lost Woods after you got possession of Cojiro. If you are aware of the Minuet of Forest, you can warp to the Sacred Forest Meadow. Upon entering the Lost Woods, take a left turn and you will see a man sitting. He will ignore you as you try to talk to him. To get an answer from him, show Cojiro and he will instruct you to get a Weird Mushroom. You have to give it to a lady in Kakariko that operates the Potion Shop. Proceed to the village with Epona and finish the task within two minutes. Remember not to warp to the Graveyard by using the Nocturne of Shadow.

It must be daytime once you reach Kakariko The timer will not be affected if you have to play the Sun’s Song. As you enter the Potion Shop, take the path leading to the left of the counter. You have to jump off the ledge and take the stairs to the entrance. Present the Weird Mushroom to the lady. You will receive a potion from her which is a cure to ailment of the man in the Lost Woods.

After getting the potion, Warp through the Lost Woods using the Minuet of Forest. The man is no longer in the area but you will see a little Kokin girl instead. She will ask you to give her the potion upon showing it to her. As you give it to her, she will replace it with a Poacher’s Saw. It is time to proceed to Gerudo Valley and cross the bridge accompanied by Epona or the Longshot. As you see the master craftsman standing outside the tent, give him the Poacher’s Saw for you to get the broken Biggoron’s Sword. Let Biggoron repair the sword.

Get back at the top of Death Mountain and take out Skulltulas with the Hookshot. Show the broken sword to Biggoron. His eyes are full of ash and he needs your help before fixing the sword. Get the eye drop prescription from him and see King Zora. As you enter the King’s room, use the Blue Fire from the Ice Cavern if he is frozen. You will get the Eyeball Frog from him but you only have three minutes before it becomes useless.

Rush to Lake Hylia and find the laboratory of the professor who will process the Eyeball Frog into the world’s Finest Eyedrops. Bring the eyedrops to Biggoron within four minutes. Make it to Hyrule Field as fast as you can Get back to Death Mountain through Kakariko village. Evade most enemies but kill the Skulltulas with the Fairy Bow.

As you give the Eyedrops to Biggoron, he will present you with a Claim Check for the repair of the sword. To expedite the process, use the Sun’s Song to leap three entire days. Afterwards, show him the Claim Check to get the Biggoron’s Sword. The sword that is more powerful than the Master Sword.