dependind on what system you are using (ds or Pc) you would have to use trading (ds)or cheats which are easier (pc)
really long
u catch them you lazy bum
there is no code.
You can catch Sinnoh Pokemon in Pokemon platinum, but you need to migrate and trade unless you have an action replay
no
You catch them.
the wild Pokemon are shiny code is on my web site here's the link http://www.eaj9182.webs.com/
there is no such code
What is the Pokemon 900 medicine code for action replay to Pokemon platinum
To finish the sinnoh dex (Pokemon platinum's,diamond, and pearl dex) you just need to see every Pokemon not catch every Pokemon.
You can catch and find all the sinnoh Pokemon and when you see all the sinnoh Pokemon you get the national dex and find and catch all the pokeradar Pokemon.You get the pokeradar when you get the national dex.
You catch Garatina, Dialga,Palkiia,and all the lake Pokemon but mainly Garatina