The cold for Mystery ticket is a866745f121c.
You could use an Action Replay (advised) or Gameshark. Do yourself a favor, use an Actiona Replay.
Gameshark.
The only way is using a gameshark or action replay
you get it from a special event or action replay/gameshark
By attending a Nintendo of America Event. You can also use an Action Replay/Gameshark.
The ligitimate way is to go to the place that the event was held and use the Mystery Gift, but now the event is over and the only way is to buy an Action Replay/Gameshark.
Yes, you have to have an e-reader, a wonder card, and to get mystery gift at all shops put in link together with all.
special event
NO!
using cheats
I REALLY DON'T KNOW.SORRY.I HAVE MYSTERY GIFT BUT I CAN'T DO ANYTHING WITH IT.DO YOU KNOW WHAT SHOULD I DO??