Unlock all the best Pokemon (zapdos, articuno, moltres, etc.) and use them.
u just bring strong Pokemon
sorry i don't know
By now you should've gotten both Passwords, so go to Rocket Warehouse in Island Five. You'll find the Scientist there.
nah bro its a gigantic pikachu that knows flamethrower
After you get the national dex {beat the elite four, and get 63 or more pokemon}, and after you talk to Celeo
First you have to get the national pokedex from prof. oak, and to do that you must beat the elite four. Then go to one island where Moltres usually is and beat up two team rocket members. Go in the cave they are gaurding search around. The ruby is deep in the cave.
You have to go to the Rocket warehouse at Five Island and defeat team rocket and the scientist then he will give you the sapphire.
sapphire
Beyond Five Isle Meadow, east of Five Island.The Team Rocket Warehouse is located on Chrono Island in the Five Island Meadow.five island
The two Rockets on one island are diging for the Ruby gem
You find the sludge bomb, team rocket HQ on island 5.
Team rocket was on five island not six island first of all second of all there gone forever after you beat them in the rocket warehouse.
By now you should've gotten both Passwords, so go to Rocket Warehouse in Island Five. You'll find the Scientist there.
The first password you will get from 2 team rocket grunts at mt ember (after you get national dex). Second is in dotted hole at island 6 when the man working for team rocket who meets you near the sapphire
Its in the eastern part of the island.
Team rocket will go to the dotted hole after five island in leafgreen, but I'm not sure about firered.
its in 5 island
The rocket team are not on four island. there are two grunts up a ways of Mt. Ember north of one island, however the Rocket Base is on five island. It requires two passwords if you want to enter. Work that bit out for yourself.
First you go to the dotted hole on six island and get the ruby. Then a scientist will take it and give you the second password to the team rocket base, then go to five island to the team rocket base. Go threw it and find the scientist, u must battle him. after u beat him he will give it back.