You cannot get the HM move of Rock Climb in Pokémon FireRed because it didn't exist yet.
You have to teach them Rock Climb, which is a HM(Hidden Move).
In Pokemon diamond, pearl, and platinum rock climb is found on route 217. (SEARCH EVERYWHERE)
you need rock climb
You need to have the move rock climb
In Pokémon Ash Gray, you can rock climb by obtaining the Rock Climbing ability through your Pokémon. Once you have a Pokémon that knows the move "Rock Climb," you need to find a climbable rock wall, which is usually marked by a gray texture. Approach the wall and select the Pokémon with the Rock Climb move to ascend. Ensure you have the necessary badges to use the move outside of battle.
rock climb
You have to teach them Rock Climb, which is a HM(Hidden Move).
HM Rock Climb
Rock climb
Teach them the HM move Rock Climb
Rock Climb is not a move in the game. It wasn't a move until Diamond/Pearl/Platinum, which came out after FireRed.
You dont get it but it can be a Level up move
In Pokemon diamond, pearl, and platinum rock climb is found on route 217. (SEARCH EVERYWHERE)
you need rock climb
rock climb
There isn't a rock climb in Fire Red. Haven't you seen there are no rocks to climb? Only Diamond, Pearl, Platinum, HeartGold, and SoulSilver.
a lot of Pokemon can learn the move rock climb here are good Pokemon that should have rock climb Ursaring because it can also learn other mountain moves like rock smash machoke just like ursaring is a mountain dude geodude and its evolutions well mostly rock Pokemon hope i helped!