on your way to goldenrod,there will be a place with a man on the left side.he is the day care man.go in the building.if you want to have an egg, you must get 2 Pokemon like gyarados male and gyarados female,then talk to the day care man.when your Pokemon lay an egg,he should call.that usually means your Pokemon has layed an egg.WARNING:legendary Pokemon can not breed.if you want to raise your Pokemon's level,just leave it in the building.come back for it later.if you are not talking about the same thing, i am clueless.
You can't migrate from HeartGold to Ruby. But it can be the opposite. Pokemon can be migrated from Pokemon Ruby to Pokemon HeartGold.
Yes, you can migrate Pokémon into HeartGold.
You don't you have to migrate to get sinnoh pokemon.
Migrate raquaza
Yes
migrate and trade
you need to migrate it from sappire
Trade from HeartGold or migrate it.
you cant unless you migrate
You cannot migrate or transfer Spiritomb from Pokémon Ranger Shadows of Almia over to Pokémon HeartGold.
Yes. The pal park is in fushica city.
Trade it from Pokemon HeartGold or SoulSilver or migrate from Emerald.