How to Get the 2nd Password to Rocket Warehouse in "Pokemon Fire Red"
Instructions
1Travel to the southern area of Island 6 until you reach Ruin Valley. You will find a locked door with pillars on either side, each with the word "Cut" written in Braille.
2
Face the door and use the "Cut" ability on the door to open it.
3
Go inside the chamber and drop down the hole. This will lead you to a puzzle where you must drop down particular holes in order to advance through the cave.
4
Drop down the holes in this order: north, west, east, south. This will lead you to the room that contains the Sapphire Gem.
5
Take the Sapphire Gem to launch the in-game event. A Scientist will steal the Sapphire Gem from you, and will give you the second password you need to enter the Rocket Warehouse.
6
Exit the cave and return to the Rocket Warehouse on Island 5. You will now be able to enter both passwords to open the way into the building.