Go to where you caught/battled Sudowoodo, and to the right, there's a fatty who gives it to you!
Chat with our AI personalities
After you battle Sudowoodo, the man near the ruins of alpha entrance will thank you and give you rock smash.
in Pokemon silver, gold, crystal, yellow, blue or red rock smash don't exist. in the new versions rock smash is a HM.
You use rock smash and can sometimes find fossils.
rock smash isn't in Pokemon red version
A wide variety of Pokemon can use Rock Smash. Most Fighting, Rock and Ground type Pokemon can learn the move Rock Smash from the TM or HM depending on the Pokemon version.