if you go to canalve city and check all the houses and the one that is stuck tight make sure you have the members card with you and go to the house that is stuck tight then you go in and then go to sleep in the bed then after that you will appear in new moon island were you can catch darkrai IT'S A LEGENDARY SO USE A MASTER BALL!!!!!
at a Nintendo event
Mystery Gift or using Action Replay
You can get it through the Nintendo wifi.
you have to get the members card from mystery gift.
you have to obtain the members card through mystery gift.(it may be possible trough AR.)
Not without cheating
With the Japanese event or mystery gift
you dont buy it you get it from the members card mystery gift
It comes with the Mystery gift...
There is not code to get one without amember's card. Well there is. Go to mystery gift and search
I think the only way is to use the action replay. or you can get it in mystery gift then open it that has wi fi connect and you'll get a gift like members card the flute to capture arceus and others
By Mystery Gift,by Wi-Fi.Hurry,it stops near September 18.