i got an american gba game that I want to migrate to my australian pearl, so I want to get an american ds game.
i would simply ask if I can trade my Pokemon pearl with an american gen 4 game. ps: my 3ds and ds lite are both australian
Region doesn't matter. All Pokemon games of the same gen can trade.
i.e Gen IV can trade between DPPt and HGSS except Gen V and below have to use infrared.
In a nutshell: Game region does not affect trading
Hope this helps!