Link's Awakening: Catfish's Maw Dungeon Walkthrough

FROM START
LEFT 1: Spark, Shieldbug, Red Blob.
LEFT 1: 4 Bats, Shieldbug: Kill all to open door on the left.
LEFT 1: 2 Shieldbugs, Spark: Kill all to open the door you came through. Open the chest for the compass. Go down the stairwell. Use the feather to jump on the first chain block. Stand on it until the other chain block moves up and then jump on it to get to the other side. Go left and do the same with the chain blocks there, to get to the far left ladder. Go up it to emerge in a room with 4 skeletons. Slash the crystals and push the blocks so they form a square in the middle of the room and you will get a key. Go back down the stairs, through the chain block cavern again and up the stairs again.
RIGHT 1: Unlock the door at the top.
UP 1: 2 Skeletons, Shieldbug.
UP 1: 3 skeletons. Kill all to open top door.
UP 1: BIG SKELETON: Hit him with your sword, then lay a bomb on the pile of bones. Do this three times, he will run away and the door on the right will open.
RIGHT 1: 4 Green Blobs: The chest is empty.
UP 1: 2 Sparks: Push middle block up.
LEFT 1: Ninji, Stalfos: Avoid slicers.
UP 1: 4 Octupi.
UP 1: Green Blob: Kill it (opens door later.)
DOWN 2, RIGHT 1: Push middle block right. Stand on switch to open the door on the right.
UP 1: 2 Stalfos, Ninji: Use feather to jump gap.
UP 1: Stalfos, Ninji.
LEFT 1: Spark, 2 Green Blobs: Kill all to open top door.
UP 1, LEFT 1: 3 Skeletons: Kill all enemies to open the door. Open the chest for the map.
RIGHT 1, DOWN 1, RIGHT 1, DOWN 2: Push middle block down.
RIGHT 1: BIG SKELETON: Defeat him the same as before. The door will open once he is defeated.
LEFT 1, UP 2, LEFT 1, UP 1: BIG SKELETON: Same as before, opens door when defeated.
DOWN 1, RIGHT 1, DOWN 2, LEFT 1, RIGHT 1, DOWN 1, LEFT 1, DOWN 2, LEFT 1: Down the stairwell again, through chain block cavern to emerge in the crystal/skeleton room.
LEFT 1: BIG SKELETON: Same as before. When killed the door will be opened and you will get the hookshot.
RIGHT 1: Back down the stairwell, through chain block cavern again into the other room.
RIGHT 2: (top of screen) Use the hookshot on the chest to get over to it. Open it for 200 rupees. Use the hookshot to get back over.
LEFT 1, UP 3, RIGHT 1, UP 2: Hookshot over to the chest. Open it for 50 rupees.
RIGHT 1: Hookshot over the gap and open the chest for a key.
LEFT 1, UP 1: Hookshot the hook to stratch a bridge out. Open the chest for 50 rupees. Hookshot over to the single block on the left.
DOWN 2, LEFT 1, UP 1: Dive in the deeep water. Make your way left through the watery cavern, killing the baddies with your sword. You will come up in another room. Use the hookshot to stretch the bridge and open the chest for the nightmare key. Go back down the stairs, through the cavern and back into the other room again.
DOWN 1, RIGHT 1, DOWN 1, LEFT 1, DOWN 2, LEFT 1: 2 Shieldbugs: Avoid slicers. Kill all enemies to open doors.
LEFT 1: Spark, 2 Shieldbugs: Kill all enemies to get a chest. Opn it for the stone beak.
RIGHT 1, UP 1: 2 Red Blobs.
LEFT 1: 2 Green Blobs: Hookshot onto the block at the far left to get past the slicers.
LEFT 1: 2 Shieldbugs: Hookshot onto the chest to get over to it. Open it for a key.
RIGHT 2: Hookshot the hook, to stretch out the bridge.
UP 1: Glowing Skull, 2 Red Blobs: Unlock the block.
LEFT 1: BIG BADDIE: Equip the bow and shield. Use the shield to deflect fireballs and bounce them off when they run at you. When they open their mouths fire an arrow at them. It takes three hits to each spider to defeat them. You will get a halfway marker and the right door will open.
RIGHT 1: Go down stairwell. Go left along the cavern. Hookshot onto the dragon heads to get on the higher platforms. Go up the ladder into another room. Unlock the block. Hookshot over to the single block on the left.
LEFT 1: (top of screen) Unlock the nightmare door.