If you want to be able to trade with Games outside of Leaf Green/Fire Red you won't bypass the warehouse.
Go to www.psypokes.com
You need to find the two passwords...
on five island
island four or island five.
team rocket take it to their warehouse
The password is: "Yes, nah, CHANSEY."
Nowhere they go away.
You suck my fat one, that's how lol
inside the rocket warehouse on the fifth island.
by looking.
The rainbow pass is a key item in Pokemon FireRed version. To trigger the events to get it, you first need to own 60 different Pokemon.
the sapphire is in the warehouse and to find the second code go to the dotted hole and use cut on the door, hope this helps