So I realized that I need to split this up into two parts. It was a bit too ambitious of me to try to do otherwise. This post is a guide to finding the Master Sword in The Legend of Zelda: Oracle of Seasons. This guide will assume that you have beaten The Legend of Zelda: Oracle of Ages and started a linked game for The Legend of Zelda: Oracle of Seasons. This is a general guide, but I will try to be as detailed as possible. With that out of the way, let’s begin.
The Master Sword is the third tier of your base sword. Your sword starts at tier 1. So that means you need to do three things. Find the sword, upgrade it once, and then upgrade it again using the secrets function. The first step is simple: you have the sword in your inventory once you start your adventure. After this, things get tricky.
Trading Side Quest
To secure one of the upgrades, you need to complete a trading sidequest between multiple different residents in the land of Holodrum. In order to begin this sidequest, you will need the item from the first dungeon and you will not be able to complete it until after the fifth dungeon. Here’s what you need to do.
After the First Dungeon

- Light the Reader’s Torch: Once you have the Ember Seeds from the first dungeon you can head to a house in town with a man who is having trouble reading a book. If you use an ember seed to light the torch next to him, you will get the Cuccoodex.
- Give the Cuccoodex to Malon: Right above the place where you were dancing with Din at the beginning of the game is where Malon lives. If you give her the Cuccoodex she will give you a Lon Lon Egg.
- Give the Lon Lon Egg to Maple: If you randomly encounter Maple while holding onto the Lon Lon Egg, bumping into her will cause you to only drop that egg. Maple will take it and trade you a Ghastly Doll.
After the Second Dungeon

- On your way to the swamp where the third dungeon resides, there will be a house that sits right before the entrance. If you enter that house, you will find a woman who will trade you an Iron Pot for your Ghastly Doll.
After the Third Dungeon

- After acquiring Roc’s feather, head back to Subrosia using one of the two portals you used previously. Using the Roc’s feather you now have access to some parts in the Northwest of Subrosia. There will be a house in this area with a Subrosian standing outside of it. Inside the house, you can use the Iron Pot to get a helping of Lava Soup.
- In the Northern Area of the Map, after you find the Zora Flippers and the Secret Tunnel, you can visit the Gorons. If you head to the top you will find that Biggoron ( yes that is its name) has a cold due to the bad weather. Giving it the Lava Soup will cure it of its cold and you will be given the Goron Vase as thanks.
- If you head back to Sunken City, in the northwest corner there is a house at the top of a stairwell. If you enter this house you will find a vase enthusiast who needs one more vase for his collection to be complete. If you give him the Goron Vase, you will get a Fish.
- Unfortunately, this is a bit of a detour, but at this point, you will have Gale Seeds so it isn’t all bad. If you head below the spot where you first fell from the sky in the prologue, you will find a man trying to get his cat out of a tree. If you give him the fish, he gets his cat down and gives you his megaphone for your assistance.
- Now you need to head back to Sunken City and back up the mountain using the jump flower. There is a cave that is in front of you that you can go into. Once you do Malon’s father Talon will be sleeping. Use the Megaphone to wake him up and he’ll give you a mushroom before heading back home. At this point, I recommend finishing the fourth dungeon since it is the last time you need to come here.
After the Fourth Dungeon

- Head to Sunken City one more time and change the weather to winter so you can enter the Witch’s Hut. If you give her the mushroom you found she will start making potions for sale and gives you a Wooden Bird.
- After getting the Wooden Bird, if you head back to the starting town you will find a house with a clock on it. Go inside and hand it to the man there and he will give you some Engine Grease.
- After exiting to the right of the town you can see a man next to a windmill. If you go to the top of the windmill and give him the Engine Grease he will use it to get the windmill to spin faster. As thanks, he will give you his Phonograph.
After the Fifth Dungeon

- Once you have found the treasures and entered the Lost Woods there will be a place where there exists a single bush in the middle of the area with nothing else around it. If you burn it and enter into the stairwell beneath it you will find a Deku Scrub. If you play the phonograph for him he will tell you the path where the upgraded sword is hidden.
After you do all that, you can get one of the upgrades for the sword. I know it is a lot, but if you know what you are doing it isn’t too bad. Thankfully, the second upgrade is much easier to get.
How to Get the Second Upgrade

- Go into the Hero’s Cave after you have beaten the third dungeon. Once you are there you should find a Zora in the second section that requires the Roc’s feather to clear. Talk to him and he will give you a secret to give to King Zora in The Legend of Zelda: Oracle of Ages.
- Boot up The Legend of Zelda: Oracle of Ages and talk to King Zora in the present time. He will ask you if you have a secret and then you can type in the secret the Zora gave you. He will then sharpen your sword. If you have already completed the trading sidequest in The Legend of Zelda: Oracle of Ages, your sword will become the Master Sword. If not, it will become the Noble Sword. The king will then give you the secret for you to do the same in The Legend of Zelda: Oracle of Seasons.
- Go inside the Deku Tree and talk to Farore, the Oracle of Secrets. Give the code King Zora gave you to her and she will directly upgrade your sword the way the king did. Depending on when you choose to do this your sword will either become the Noble Sword or the Master Sword.
See, I told you there were a lot fewer steps. Remember that you can get this second upgrade before entering the Lost Woods so you can become more powerful quickly. It doesn’t matter what order you get the upgrades in, so long as you get both eventually. That is just about everything you need to know about getting the Master Sword in this linked game. I will need to do a separate one for ages, but that probably won’t be until later. Hope you enjoy your new sword. Have a good night!