Actually, you get it after saving Fugi. You have to go to Celadon city and beat Giovanni to get the Silph Scope. Then, beat the team rocket grunts and beat Marowak in lavender town and you get it.
Get it from Fugi who at the top of the tower in Lavender town
you can get one from trading from firered or leafgreen to your pearl. you will migrate it into pearl then find it in the pal park.
You have to get the Poke Flute Channel for your Pokegear in Lavender Radio Tower in Lavender Town.
You can't
Rock Climb is not a move in the game. It wasn't a move until Diamond/Pearl/Platinum, which came out after FireRed.
Use the HM move Strength.
you get the HM strength
Two Island.
there is no such move as stength
RFDHDF
Yes, yes it is.
Use the pokeflute.