Goodnightmoon on 17 June 2015
You only need the AC amiibos or the AC cards to play the game , you don´t need them all though, just the ones that you are going to use, one per player. The game will be a free download but it looks like is going to have a retail release too with all the amiibos.
Also the game is compatible with Happy Home Designer on 3DS on some way.
