It's Happini.
Im sorry, but there is no happiny egg in Pokemon platinum. You got diamond or pearl? trade from there
Breed a female Houndoom with a compatible Pokemon and hatch the Egg. I got the information from Pokemon.marriland.com
you get the manaphy egg in Pokemon rangers and send it into Pokemon diamond or pearl
You get a togepi egg in Pokemon Platinum, not Diamond.
no you already gave the manaphy egg away to your previous save
That is the only way to get a manaphy without cheating. once you get the egg in Pokemon Ranger then trade it to diamond/pearl/platinum and when it hatches then you have got a manaphy.
Have two Nintendo DS one have the Pokemon Ranger and one with the Pokemon Diamond. Then go to check egg. Then you have it.
It is not possible to get a Lugia egg in Pokemon Diamond. It is generally impossible to get an egg of a Legendary Pokemon the only exceptions being Manaphy and Phione.
Happiny
Manaphy is obtainable in Pokemon Diamond if you also have a copy of Pokemon Ranger. The game Pokemon Ranger is able to communicate with Pokemon versions; Diamond, Pearl, Platinum, HeartGold and SoulSilver to transfer a Manaphy Egg to them. This Egg can be hatched like any other Pokemon Egg.
you cant unfourtanately
happiny