Well if you want to move grey, round rocks, you have to have the HM strength but the brown bumpy rocks can be destroyed with HM rock smash.
Hope I helped!
It is impossible to move a Pokemon from SoulSilver to Sapphire as the two games are from different generations, you can only migrate Pokemon from Sapphire to SoulSilver.
Nothing
Play the flute to it.
Blackthorn city
You can find it by chance when you use rock smash on rocks
Poke flute channel
No such thing dude you should know that!
Go to the Move Deleter in Blackthorn City.
depends on Pokemon
No.
use pokeflut
its in blackthorn city right next to the pokemarket.