you defeat a gym leader
a man near violet city gives it u
a move in Pokemon to smash rocks so you can get past
First, you have to get the HM strength, then teach it to and a Pokemon and you can move boulders.
Any Pokemon that can learn a electric move
press it and move it
Ones that, when you press 'a' on them, say a Pokemon might be able to smash it when you don't have a Pokémon with the move Rock Smash on your team, or haven't obtained the badge to use it outside of battle yet. They're a sort of triangular shape with cracks in them (see image in related links).
You select "Move Pokemon" on the little computer in a pokecenter.
You need the move rock smash
he can learn dragonbreath
no their unforgetable
it is cianwood city
A man in Ilex Forest