You RENTED Zelda 64? Good luck beating it in that short amount of time.
Anyway, what you said is NOT true. Here is how to get the Biggoron sword in seven easy steps.
1.When you become an adult, go to Kakariko village and talk to the cucco lady. She will give you a white cucco. Now go into house next to the crate that contain a cucco when you were smaller and use the chicken to wake up Talon. Then return the cucco to the cucco lady to get a Kojiro(a blue cucco).
2.Take the blue cucco, and bring it into the lost woods. When you go into the lost woods, make a left to go to the place with two tree stumps. Walk in front of the cucco lady's brother and use Kojiro. He will give you a special mushroom to give to the old hag in Kakariko village. There is a time limit, so you better hurry.
3.After you give the old hag the mushroom, she will give you some special medicine. Go back to the cucco lady's brother in the lost woods. He won't be there anymore, but one of the Kokiri girls will be there. Give the medicine to her and she will give you a saw.
4.Now go to the Gerudo's Fortress and use the long hookshot to get to the otherside. Now give the saw to the big guy that you meet in front of the tree you saw in Kakariko village when you were little. In return, he will give you a broken Biggoron sword.
5.Now go to the top of Death Mountain and give the broken sword to Biggoron. He will fixed it for you, but you will have to get special eyedrops for his hurt eyes. He will give you a prescription which you will have to take to King Zora.
6.When you give the prescription to King Zora, he will give you the special eyeball frog. You will have to take this to the professor in Hyrule's Lake, but be quick, you have a time limit!
7.After you give the professor the eyeball frog, he will make the special medicine, but it doesn't have any preservative and you will have a time limit. Take the medicine to Biggoron VERY quickly, the time limit is short in this one. After you give the medicine to Biggoron, he will give you the Claim Check. Come back to him after three days, or just play the Sun Song six times to get the Biggoron sword.
There! I'm done!
Hehe, I used to get the Biggoron sword as soon as I can. I do this so I can beat everything much easier. The Biggoron sword is twice as strong as the Master Sword, so it's much more fun that way. Well, for me anyway.
But don't be fooled. Just becauase the Biggoron sword is the most powerful sword in the game doesn't mean that it can destroy Ganon. Only the Master Sword can do that.
Anyway, I hope I help you! If you need to know anything else, whether it be Zelda:Ocarina or Time, Zelda:Majora's Mask, or just Super Mario 64, then just ask me! And I'll answer as best as I can.
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