you need a tri-pass. And you board the seagaltop ferry and you pick two island
the small store/stand on island #2
Growlithe is found in the Pokemon Mansion on Cinnabar Island in Pokemon Firered.
on cinnabar island
No. You can catch a Growlithe in FireRed in Pokemon Mansion on Cinnabar island. FireRed is the same as LeafGreen so you can catch it. ;P i have 2 of them
Beat the pokemon league.
There no Mew in firered.
you can get deoxys at birth island
in 1 island Pokemon center
On Cinnabar Island
its on birth island
On Birth Island
On cinnabar island