Growlithe is one of the "version-specific" Pokemon. Growlithe is only available in HeartGold, while in SoulSilver you can only get Vulpix.
the only way to get deoxys is: a)action replay/r4 b)migrating c)trading
You can't, you must trade or migrate, Sorry. :-(
you can get dragonite,lucario,eevee,gardevoir,wailord,dialga palkia,giritina ,arceus,etc.
You can get growlithe in the old mansion,but you have to look very hard and you have to go all over the building.I caught it already.ekans is inside the Pokemon Mansion.
Nowhere, because you can't catch it in the game. Your best bet is to get one in HeartGold or SoulSilver, then transfer it to White 2.
you can't
You can't get Castform in SoulSliver without trading or migrating.
Here are some of the ones you can get without trading/migrating: Cyndaquil, Quilava, Typhlosion Flareon Vulpix, Ninetales Growlithe, Arcanine Magby, Magmar Ponyta, Rapidash Legendaries: Moltres, Entei, Ho-oh
You cannot catch cindiquil without trading or migrating on Pearl. You must trade or migrate to get one.
Cheating
Cheating, hacking, or trading.
Not without trading or cheating.
Cheat using an action replay
In Diamond & Pearl? Impossible without migrating, trading, or Action Replaying.
you cant
you can migrate him from emerald or sapphire.
you cant it one of the few that you cant catch without migrating or trading