Pogeys Time

It doesn't show in the regional dex, but you can still have it. If someone traded you a legitimate Darkrai, it wouldn't give them a message saying they can't trade it to you. Likewise, if they traded you a Jirachi, it wouldn't be blocked either. It just doesn't show up in the Pokedex until you upgrade it. The stats screen has their Pokedex number listed as ??? until you get the national dex.

At least, I think that's how I remembered it. I'm pretty sure I managed to get a Charmander from someone online in Diamond before I even got the national dex.

iirc, diamond had it so that you had to have the national dex before you could even consider getting pokemon outside of the region, and with the release of platinum that limitation was removed for that game.

also just got my heart gold copy, and i cant fuggin figure out how the hell to get the damned clip onto the walker thing.