Pokemon Platinum is just the 3rd generation of Sinnoh, just like Pokemon Yellow, Pokemon Crystal, Pokemon Emerald and now Pokemon Platinum is just a re-playing of the series, but more things to do, rumor has it that Platinum is a multi-region game that MAY let you access the Johto Region. However it has NOT BEEN CONFIRMED yet if it can access Johto, since it is a rumor.
Yes creselia is is in Pokemon Platinum.
vulpix is not in Pokemon platinum version.
No
no, these Pokemon are unknown in Pokemon platinum
The ID For Pokemon Platinum(USA) CPUE d074d1b3
you can't
yes but it is called Pokemon platinum
no you can not.
You can't, Mewtwo is not available in Platinum.
There is not a verstion of platinum for gba
No
no.