there was a code to fill in missing numbers for the pke dex but it would completely mess up your game.
That pokemon is Azumarill in pokemon platinum in the national pokedex
No.
You have to get the National Pokedex by catching all the Pokemon in the Sinnoh Pokedex. Then you go to the Pokemon Mansion and talk to the guy who owns the building.
You do need the national pokedex for the Pokemon modifier. the Pokemon modifier uses the national pokedex numbes. you can not use the sinno pokedex.
In the National Pokedex in Pokemon Platinum Mawile is Pokemon 303.
nothing
The first Pokemon in the national pokedex is a bulbasaur
all of them in the regional pokedex
on national pokedex its umbreon
493
Pokemon Platinum has two different Pokedexes: the Sinnoh dex and the National Pokedex. In the Sinnoh dex, #152 is Rotom. In the National Pokedex, it's Chikorita.
in the sinnoh pokedex dusclops, in national pokedex aipom