No. the only games that have multiple regions are g/s/c and hg/ss
In Pokemon Platinum, you can't access any other region. If something made you think that, you're wrong.
No, there is no data of Pokemon black or white in Pokemon platinum so it won't know about any of the pokemon.
Of course there is
No!
I can only give you a code that has any Pokemon you want lv. 100.
There is no Action Replay code to travel to different regions or change Sinnoh to any other region.
* may 2bich
theres no action replay code for dilga in any Pokemon game
This isn't any help but i do no
you cant. there is no code uet. but there is a code for seeing ANY POKEMON you want at the level you choose in the tall grass.
NO
no once you do it you are done