The Sword and Shield: In Hyrule Castle by talking to his uncle.
The Boomerang: In Hyrule Castle in a chest.
The Bombs: In Kakariko Village in a cave.
The 1st Bottle: Buy it in Kakariko Village.
The 2nd Bottle: In a chest in the inn (enter from above).
The Bug Catching Net: A sick boy lends it to you in Kakariko Village.
The Magic Powder: By giving the Mushroom to the Witch.
The Bow: In the Eastern Palace, in a big chest.
The Pegasus Boots: The Elder gives them to you after getting the Eastern Palace Pendant.
The Ice Rod: To the right of Lake Hylia (southeast).
The Book of Mudora: In the library south of Kakariko Village.
The Flippers: In Zora's Waterfall, buying them from a big Zora.
The Red Boomerang: In a waterfall to the left of Zora's Waterfall.
The Red Shield: In a waterfall to the left of Zora's Waterfall.
The 3rd Bottle: Under a bridge in the water, a homeless man gives it to you.
The Magic Mirror: In the mountain, an old man gives it to you.
The Moon Pearl: In the Tower of Hera (3
rd Pendant palace)
Master Sword: In the Lost Woods northwest of the Light World.
The Magic Hammer: In the Palace of Darkness (1
st Crystal).
The Ether Medallion: To the left of Tower of Hera (Light World).
The Quake Medallion
: In the Dark World, northeast (below the mountain), throw an object into the stone circle.
The Bombos Medallion
: In the desert, far left of the 2nd Crystal palace, teleport between the stakes.
The Flute
: (Ocarina) in the Light World after talking to the animal-man in the Dark World.
The Tempered Sword: The blacksmiths temper it for you if you reunite them.
The 4th Bottle: By bringing the chest right of Kakariko (Dark World) to the thief at the desert entrance.
The Magic Cape: In the graveyard, in the grave top right surrounded by heavy rocks.
The Golden Sword: The fairy upgrades your sword in the Pyramid (Dark World).
The Silver Arrows: The fairy upgrades your bow in the Pyramid (Dark World).
The Cane of Byrna: In Death Mountain (Dark World)
As soon as you have the hammer and the magic powder, you can go to the right of Kakariko village and fall into the hole in front of the blacksmiths' house. By using the magic powder, you will awaken a little devil who will reduce your magic consumption by half.