see all 150 Pokemon then u need to see manaphy and rotom then go to professer rowan
manaphy's data is in the big house with the trophy garden, in the owners room(second on the right) walk to the back and read the book on the table.
rotom is in the spooky house in the the forest where that girl walks with you, (use cut for getting rid of the little tree) and go inside. once inside save (in case you kill it, you can just restart) go on the second floor, third room on the left and there should be a T.V and then the battle starts(he only battles you at night time).
Edit: I got national dex without seeing rotom or manaphy. Just the 150 Pokemon is enough. The book is useless, it says "It's a very expensive-looking book on Pokemon." And the tv says "Eerie red eyes are staring at you" (or something like that) if you go without the national pokedex.
p.s. To see the other legendary (for eg. in pearl, to see Dialga (which you cannot get)) go to Celestic town and enter the big house. Talk to the old lady and she will show you Dialga/Palkia's picture.
Beat the elite four then if you did'NT see a drifloon.ON FRIDAY go to the valley windworks on that day then you see a drifloon talk to it and use a fast ball to catch it and then talk to professor rowan and you'll get a niational dex.
p.s you have to have 8 badges and did'NT cheat on skiping stuff because that's a problem that i cant help with of getting a national dex.
you get the nantaional pokedex in three steps:
Complete the Sinnoh Dex and Beat the elite four
you get it by beating the champion, and then you go to prof. rowan's lab and talk to him. after that Prof. oak comes and gives you the national dex. you also have access to the pal park.
You have to see all pokemons off your pokedex
in the national pokedex it is mackoke. if it is in the sinnoh pokedex it is buneary.
with action replay
Regigigas
The Pokemon that is number two in the National Pokedex is ivysaur.
you just keep catching all the Pokemon
No, there is not a Pokedex after the National Pokedex in Pokemon Diamond Version.
press switch pokedex on the national pokedex and you will be using the sinnoh pokedex
The National Pokedex is given to you once the Elite Four is defeated.
There is no other pokedex.
In Pokemon Diamond and Pearl you need the National Pokedex to get Magnemite. In Pokemon Platinum you don't need the National Pokedex to get Magnemite.
Well, since there is no number 117 in the local pokedex in Pokemon Diamond, we have to look into the national pokedex. In the national pokedex, number 117 is Seadra. Number 117 in the Sinnoh Pokedex is Wooper, can be found in the great marsh or on route 212
well you need to have all your Pokemon in your pokedex and when you get your national pokedex you will get breed
There is no way you have to compleate the pokedex but most of it is at the gyms.
146 is Uxie on sinnoh pokedex On National pokedex it is Moltres
You can get the National Pokedex in Diamond when you see all 150 Pokemon, but not necessarily capture them.
in the national pokedex: arceas in the regular pokedex: dialga
104 before the national pokedex expansion