To get streangth, you have to go to Fucharia city. Then, in the safari zone, pick up all the items you can find. One of them is the warden's gold teeth. Then, go to the warden's house in Fucharia city, and give them to him. In return he will give you streangth.
You can use the move strength in Pokémon to move boulders. You can use strength in FireRed after getting the rainbow badge.
you get the HM strength
rocksmash strength and surf
You need to learn the HM strength.
Use the HM move Strength.
I beleive it is somewhere in leafgreen and firered versoin
use strength or cut that's my opinion
you go up to a rock and you press A. brilliant
The Gym Leader that allows you to use the HM move Strength in Pokemon FireRed is Erika. Erika is the Gym Leader of Celadon City and is the 4th Gym Leader the player faces.
Go to the safari then find this fake teeth thing, then go to wardens house and give it to him then he will give you hm strength
You get it in island six's Ruin Valley. You must use strength to get it.
use strength find wardens teeth in safari zone