go to route 36 and talk to the guy in front of sudowudo
there is no rock smash in Pokemon Red. there are only 5 HM's in Red version. the rock smash was introduced in the Silver and Gold versions.
rocksmash isn't a HM, it's a TM. but i think you get it from a gym leader.
there is a guy by violet city who gives you HM rock smash
This HM is received from an old man in the Ember Spa on One Island.
cut,fly,surf,streangh,flash,rocksmash and water fall
you can find it east of jubilife city in the cave a hiker will give it to you
You can get rocksmash at the Pokemon center at the city were the gym leader uses electric type of pokemons.Just talk with the scientist.
Go to one island. Then talk to every person. One of them has rock smash!
It is on shinou city,it is at front gate pokemon leage the nugget. HOPE IT HELP GOOD LUCK
there is no such thing as rock break or if you mean rock smash it is not a hm. if you want to get rid of the huge rocks you need strength
There is no TM that can Break rocks in Pokemon leaf green there is however in HM that breaks rocks called RockSmash
Go west from the town/city with the first gym, and the person closest to Sudowodo should have it.