you cant
No, you don't need the National Dex to evolve Haunter in Pokemon SoulSilver. You just need to trade it with a friend then trade it back. Then, you have a Gengar!
heartgold and soulsilver but the event is way gone now.
it doesn't get deleted
In HeartGold and SoulSilver, you find them in Esturack City at the dance studio!
It shouldn't
You find it after you fight the wiggly tree.
By using the TM Flash
If he does not give you Flash, then you just lost the battle. He always gives out Flash.
the large department stores celadon for example
You could buy it at the Goldenrod City Department Store.
You can get Flash as TM70 from the Elder in the Sprout Tower. Additionally you can buy it with your in-game money in the Goldenrod Department Store.
By pressing start a new game, you automatically begin a new game, but other wise it cant be deleted.
If you have Soulsilver, you need a Pokemon that knows the following moves: Flash Surf Whirlpool Sweet Scent Go to where you caught Lugia and then use sweet scent. If you're really lucky, Arceus will come.
no you can trade soulsilver pokemon to black
it is in Cerulean cave in cerulean city since u have to use flash u have to look VERY good
he is not in Pokemon soulsilver or Pokemon heartgold