Floor 18

After Zelda speaks, observe the room. New enemies called Wrecker Phantoms are present; there are three of them. These Phantoms roll into a ball and destroy bombable objects when they spot you. They are faster than you, so dodge them if spotted.

Your first Tear of Light is in the southeast corner. Move there and destroy the blocks with Bombs. Be aware that Wrecker Phantoms may investigate the noise.

Once the initial blocks are bombed, bomb the blocks blocking the Tear of Light. Grab the Tear.

If you need bomb and arrow refills, nuts that (respawn (be brought back to life at a checkpoint after death)) (enemies that reappear after being defeated) are located at the floor entrance and drop these pickups.

Return to the entrance, refill your supplies, then head west, destroying any blocks in your path.

Reach the northwest corner. Pull a block west, then pull it north from the north side. Push it north the rest of the way, then east.

Move east and pull the next block west, then pull it south.

Continue moving and step on the ground switch. This will make a chest appear in the northeast corner.

Head to the chest. You will need to swing to it. Open it to get a small key.

Swing back, then make your way to the door in the top center of the room.

Unlock the door with the small key and head upstairs.