In lilycove city next to the contest hall there's a house in there is where the GameFreak staff are.
Bea the game
You can't be cause Sapphire is a Generation III game and Regigigas is a Generation IV pokemon.
You can't find it in Pokemon sapphire you have to tradeit from some other Pokemon game
no you cant find deoxys in sapphire. but u can go to 4shared and download a game called Pokemon sharrowns.in it you can catch most of all legenderies.
You cant he is gone from the game.
you cant on sapphire. but u can trade them from a fire red or leaf green Pokemon game
It varies by game, in ruby sapphire and emerald you can find it wherever you can find Hariyama.
you can't find squirtel in Pokemon ruby,sapphire or emerald idiot.
use super rod in meteor falls
You can buy that TM at the game corner.
The only way is to start the game with Treecko as your starter.
you cant get him on platinum i got him on gba game Pokemon Sapphire you can only get him with action replay