First off its called the "Phantom sword" not the master sword and you have to get all 3 pure metals but i dont know its location after getting them
It's like the master sword, but with an hourglass in the middle of the handle
phantom sword
you kill a phantom by getting the phantom sword and then hitting them in the back
You go to osha and he fuses the hourglass with the blade
you get the third precious metal for the phantom sword.
Once the Phantom Sword is in your possession, go to the Temple of the Ocean King, descend as far as you can, and face your final battle with Bellum.
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they are sword, boomerang, bombs, bow, bomchus, grappling hook, hammer, and finnaly the phantom sword.
You can't it's a minigame. He will give you a prize for getting 100+ hits. Get 150+ hits and you will get a prize of higher quality.
Just go to a cave right of Oshu's house, writ the number 7 and you will have the sword.
You go to the end of the temple of the ocean king and kill 9 phantoms with the sword (By hitting them in their backs) and beat the final bosses 3 forms.
i have the action replay and i'm, pretty sure you cant get a cheat for that.