I don't think you can
You can also find Lugia and Ho- oh on islands 8 and 9 with a gameshark cheet or going to a Nintendo event
There are several things people say work one is a Gameshark the other is a Nintendo Event such as Pokemon Rocks America 2005.
You can't.
this requires you to have attended a special Nintendo event(s) or much more conveniently to use gameshark or action replay codes
There is no mystery pass.But there is the Aura pass and the ... pass uh i forget its name they are impossible to get without a Nintendo event but gameshark can bring you to the islands the passes can get you to.
you do not..
The following are the Gameshark codes to unlock islands 8 and 9 in Pokémon Leaf Green. The codes are Navel Rock - 82031dbc 2402Birth Island - 82031dbc 3802.
You can't get them without ar, Nintendo event, or friends.
Articuno: Found in the Sea Foam Islands Zapdos: Found at the end of the Power Plant Moltres: Found on Victory Road Mewtwo: Once you beat the Pokemon League head to Cerulean City, and go into the Cave. Mewtwo will be in the last room Mew: Special Nintendo Event (Which is probably out dated) or Gameshark: 0115D8CF
Use Gameshark. Once you do get one go to neoseeker.com and they hold Gameshark codes for Wild Lugia and Wild Ho-oh. Use the Gameshark to warp to their islands and then it's like catching them the normal way. The game will even treat them as non-cheat pokemon.
Must be traded from Blue, Red, or Yellow. Another way to obtain Articuno is to use Gameshark cheats.
You can't..... you can only get the old sea chart from a Nintendo event. ( Nintendo events are real life Nintendo give aways that give out Pokemon and the nesseccary tickets to get to different islands) PS: i hope that helped you.