You can't hatch a Blastiose because it's not the first evolution, but you can hatch Squirtle.
After getting all 16 badges, you can get Squirtle from Professor Oak.
I'm afraid not.
Silaqueen is not an existing Pokemon. It is not found in HeartGold or any other version. It will be found no where.
grass
The oldest Pokemon games to feature Johto are Gold, Silver, and Crystal. FireRed and LeafGreen partially feature Johto after you beat the Elite Four. The newest games to feature Johto are HeartGold and SoulSilver.
Teddiursa is only available in SoulSilver. There are many Pokemon that are version-specific, and Teddiursa is one of them. Only Phanphy can be found in HeartGold.
I'm afraid not.
mew
Silaqueen is not an existing Pokemon. It is not found in HeartGold or any other version. It will be found no where.
No
Ledyba is not catchable in Pokémon HeartGold Version.
You can only go to Johto and Kanto in Pokemon Heartgold and Soulsilver
Pokemon HeartGold and SoulSilver.
The only way is to throw away your Heartgold version, buy the original Red version, and play a real Pokemon game.
yes
cant
HeartGold and Soulsilver
no