Zelda 3 A Link to the Past Walkthrough on Super NES: From the mire to the palace of the 7th crystal (GBA, SNES, Super Nintendo)

Go to the Bomb Shop in the Dark World at the location of Link's house. Buy the big pink bomb (do not run or jump over walls with it) and head towards the pyramid (where you start). Make a hole where it is cracked (1) with the big bomb following you and enter. Throw your bow (2) and your sword (3) into the water and the fairy will return them to you more powerful (Magical Sword and Silver Arrows).

Next, go to Death Mountain (Light World) and take the teleporter at the summit. Jump into the hole and enter the cave (1). Press down the heads and use the Magic Cape (2) to reach the chest containing the Cane of Byrna (3). Go back out, use your Magic Mirror and return to take the teleporter. Go a bit to your left and teleport using the Magic Mirror. Jump off the platform upwards and go take the bridge on the right.

Hammer down the stakes, continue to the right, lift the large rock at the foot of the stairs and hammer the stakes in the following order: right, top, left (1). Take the teleporter and use the Quake magic on the medallion drawn on the ground (2) to open Turtle Rock. Before entering Level 7, go left and lift the stone. In the cellar, go straight. Here, look closely and you will see the tiles lightly drawn (not sure actually, so make a mini detour to the right towards the middle). Follow them and make a hole in the top wall (3).

Then make a hole in the left wall (1), go down and use your Magic Mirror. Take the 1/4 heart and jump through the small hole (2) to return to Turtle Rock to save Zelda (3).

Here is a save file for the ZSNES emulator (to be copy-pasted into the Rom folder).