Ocarina of Time Trading Sequence

Side Quest that had the Biggorn's Sword as a reward, it doubles the offensive power of the Master Sword but is a twohanded sword. Unlike Medigoron's Sword this one will not break. The trading sequence goes like this:

Recive Cuco Egg from Anju in Kakariko Village Wait for the egg to hatch at dawn. Wake Talon with the Cuco. (he is inside a house in Kakariko Village since Ingo kicked him out of Lon Lon Ranch) Show Anju the Cuco and she will give you Cojiro (a blue Cuco). Go to the Lost Woods and at the entrance take the left trunk and show Cojiro to the guy sitting there. He will give you a mushroom which you must take to the potion shop in Kakariko Village within the time limit. You will get a Medicine for the mushroom and head back to Lost Woods just to find that the boy passed away and probably transformed into a Stalfos. Give the medicine to the Kokiri girl and she will give you a Saw. Take the Saw to the Carpenter's Chief in Geroudo Valley (across the bridge) and he will give you the Broken Goron Sword. Take it to Biggoron on top of Death Mountain and he will ask you for Eye Drops and will give you a prescription. Take it to King Zora and he will give you an Eyball Frog. Take the frog to the lakeside labortaory in Lake Hylia within the time limit and give it to the scientist in there. (Don't try using the Serenade of Water to reach Lake Hylia fast, if you do the timer will go down to 1 second which makes it obviuosly impossible.) The scientist will give you the Eye Drops which you must take to Biggoron within the time limit. (again don't warp or the timer will go down to 1 second.) Biggoron will give you a Claim Check (A master's work take time) Wait three days to pass or simply play the Sun's Song six times and give the Check to Biggoron, he will give you the Biggoron Sword.