Daycare center located in Goldenrod city (south)
yes you can...you make eggs in all Pokemon games
No, you cannot sell eggs in Pokemon HeartGold.
yes, depending on the Pokemon hatched from the eggs gender determines what Pokemon you get tho
evey Pokemon has an egg except legendarys and ditto
Yes, there is a special option in the union room
yes at supercheats.com/pokemon heartgold action replay codes
Bike around on the highest gear :) OR Put the egg in your party next to a Pokemon that likes to run (this will be in it's summary) Hope this helps--Taylor
You make them breed with Ditto.
No you cannot sorry
no
You can't.
no legendary Pokemon or genderless Pokemon can make eggs/breed. hope i help :)