you can't. you suck!!!!
not without cheating
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.
You can't without cheating.
Not without cheating, you can't.
You can't without cheating
you sometimes find them in the wild
Yes, mainly because there are many more opportunities to get rarer Pokemon that you couldn't get in Pokemon Pearl without cheating.
you can't
see them somewhere (id see it in a battle) then use the pokedex
With the Japanese event or mystery gift
there is no way. cheating is the only way
Without trading or cheating, you can't. It's a Pearl exclusive.