you dont use it it only unlocks a cave
Any time you want.
use it and when a exclamation mark appears, press A.
it is a item that you obtain in pokemon soul silver that you use to catch lugia the legendary bird in the whirl islands.
u can use a heavy ball or a fast ball... or if u need more help add me zen_4_eternity@hotmail.com
Catch a Jynx in the ice path and train it on the mountain path. Claire's dragons are weak against ice, for kingdra use Ampharos
You can't get to Hoenn in HG/SS. You can use Pal Park in Fuschia City to migrate Pokemon from your Ruby/Saphire/emerald game to HG/SS, but you cannot physically go to the region, only Kanto and Johto
Go to http://bulbapedia.bulbagarden.net_wiki/Rock_Smash_(move)#Generation_II to find out.
You use it to summon lugia at the wirlpool caves.BUT YOU NEED ALL BADGES TO SUMMON HIM WHICH I TRIED BUT I NOTICED I ONLY HAVE 7 WITH MY LEVEL 30 POKEMON.
You use Ice path then come out at Blackthorn. I can't remember when but, eventually he will let you through. actually you have to go to the radio tower in golden rode and defeat the team rocket.
latious
Yes
You don't you have to use an Hm on a Pokemon