put two Pokemon in the day care 1 female 1 male go to the link below to look up egg groups ( who can breed with who ) or catch a ditto ( ditto can breed with anything but legends)
You probably think that this could be cheating, but I don't know about it. Try going on YouTube and type in Pokemon How to Make an egg in Heart Gold. It tells you everything you need to do to make it.
Transfer in a pokémon that is holding a Lucky Egg.
Wild Chansey
In HeartGold, give a Mantine the Wave Incense and breed it. The egg with hatch into a Mantyke.
You get an egg from Professor Elm's assistant from any Poke Mart.
Deposit one of your Pokemon and you may get the egg
you can if you go to the daycare and put an arbok in with a ditto
No legendary can lay an egg except for manaphy which gives an egg to phione and you can not get manaphy or phione in heartgold
A Togepi.
Transfer in a pokémon that is holding a Lucky Egg.
Wild Chansey
In HeartGold, give a Mantine the Wave Incense and breed it. The egg with hatch into a Mantyke.
You can't it is an egg! Eggs cannot hold anything moron!!
You get an egg from Professor Elm's assistant from any Poke Mart.
you put a ditto with typhlosion
yes.it will work in all games so far.mabey not the fake ones though
Deposit one of your Pokemon and you may get the egg
you dont you get a cleffa from diamond/pearl,and or platinum