No, you cannot sell eggs in Pokemon HeartGold.
You can't get rid of HMs in heartgold.
evey Pokemon has an egg except legendarys and ditto
Aura Beam is in Pokemon HeartGold.
That is impossible in Pokemon HeartGold and SoulSilver.
You need to mate the Pokemon with a Ditto.
yes you can...you make eggs in all Pokemon games
You cannot sell Pokémon in HeartGold, or any Pokémon Game.
You can't get rid of HMs in heartgold.
evey Pokemon has an egg except legendarys and ditto
Yes, there is a special option in the union room
You can sell it to a shop for a very high price.
You can't. You have to put Pokemon in the blue thing in the Pokemon center (the PC).
Daycare center located in Goldenrod city (south)
7 $
yes, depending on the Pokemon hatched from the eggs gender determines what Pokemon you get tho
There is no best Pokemon on Pokemon HeartGold.
there is no Pokemon Mansion in Heartgold.