Puzzle & Dragons Z 3DS released in Japan on December 12th 2013. GungHo Online Entertainment have said previously that this game will be released in the West, but we haven’t heard news since that announcement.
Twitter user Emolyptic asked GungHo Online about the game and they replied by saying their company president has announced a western release, but there are no details at this time.
@Emolyptic actually P&D Z was officially announced for a western release by our company president – no details at this time, but stay tuned!
— GungHo Online (@GungHo_America) January 8, 2015