1.Lv.1 swordMaster sword. How to upgrade:get all three pendants and pull it out in the lost woods
2.Master Sword Tempered sword. How to upgrade:After beating the fourth dungeon rescue the creature from the dark world and bring it to the light world bring him to the blacksmiths house.They will offer to temper your sword for ten rupees.
3.Tempered sword golden sword. How to upgrade:after beating misery mire go to Link's house in the Dark World buy a super bomb
and take it to the Pyramid of Power and blow open a huge door. Enter and a fairy asks you to throw two items into the pond.Choose the bow(or the boomerang) and the tempered sword to recieve the Golden Sword and the Bow and Silver Arrows.
Note#1:if you put in the boomerang you will get the magical boomerang but I recommend the silver arrows
Note #2:DO NOT USE THE PEGASUS SHOES TO RUN TO THE PYRAMID! The bomb will explode,but also try to make it in time to the pyramid beacause you are timed if you run out of time it will explode.