In order to unlock Rayquaza in SoulSilver, you need to obtain the Red Orb in from Mr. Pok
i am sorry but you cannot obtain arceus in Pokemon heartgold or soulsilver.
It depends on what type of Pokemon you would like to obtain in Pokemon SoulSilver. If you can find the tower in which HoHo is, it will be on lvl 70 and MewTwo is on lvl 70 as well. or just train the Pokemon
The only way to obtain a Deoxys is to migrate it from Pal Park.
You can only obtain Regigigas through a trade, not in normal game play.
you cant catch it on SoulSilver or any other Pokemon game because you can only obtain him via Nintendo wifi event
you can obtain sharpedo by getting a carvanna from the safari or a pokewalker. hope this helped!
You can obtain Meowth on routes 5, 6, 7, 38, and 39.
To obtain a Magby in Pokemon Soul Silver you first have to capture a Magmar and bread him with a captured Ditto. You have to breed these two Pokemon at the daycare center.
in pokemon heartgold after you beat red and get your 2 starters you go to mr. pokemon and he'll give you the blue orb to kyorgre
You can obtain a Cubone in Rock Tunnel or in the Safari Zone Desert Area.
The only way to obtain it is to trade it from Diamond, Pearl, or Platinum. Once you have it in you game, you can breed it.