Three words 4 ya gts
The only way to get manaphy without Pokemon ranger is to get it from a Nintendo event.
You don't
to get Manaphy without cheating, you have to have Pokemon Ranger, beat a certain mission, and then somehow transfer the Manaphy egg to Diamond or Pearl.
Your cant get it without Event
migrate phione from Pokemon ranger
With ans AR
If you mean manaphy you have to hatch it from an egg to get the manaphy egg you have to download it from Pokemon ranger or Pokemon ranger 2
Manaphy is not originally in Pokemon Diamond. In order to obtain it (without an action replay) you must play all the way through the game Pokemon Ranger. In the last (extra) mission of the game you can acquire the manaphy egg and then send it over to Pokemon diamond.
Pokemon Ranger.
Transfer it from Pokemon Ranger.
Ranger net
don't know but maybe cheat codes (sorry)