How do you get rock smash in Pokemon ash gray?

Rock Smash is not obtained in Pokemon Ash Gray. Instead, there are two moves with similar effects.

Boulder Punch

Location: Kanto

- Saffron City: Fighting Dojo: Reward for defeating all Karate Masters with a Pokemon below level 65.

- Kanto Route 24 - Inside grass on far right path

Rock Slide

Location: Saffron City

- Department Store - Top Floor - TM34 on the third display table from the right.