it`s only a unown!!
The only "passes" that I can recall from Pokemon FireRed are the Tri-Pass, which grants you access to Islands One, Two, and Three, and the Rainbow Pass, which grants you access to Islands One through Seven (the Sevii Islands).
They are each in there own caves in the middle of the three lakes
In the underwater sealed cave and in the three regi caves
in one of the three caves on map two
i bleve so
you can't get the three regis but, if you have pokemon sapir\rubi\emerald version on the gameboy advance, you can tke the three regis through the pal park in route 221 (in south). *there are three caves that may be the caves of the three regis but i don't know what to do there.
You go to the three caves and catch them.
No there are 9 islands, 0ne, two, three, four, five, six, seven, birth island, navel rock which is an island.
Hawaii, Oahu and Maui.
it's on one of the three islands
go to the boat from which you came from you fool
Find the ruby in mt ember after getting the national dex and give it to celio you will get a rainbow pass which lets you go to islands 4-7.