This is the only app developer refusing to issue a coupon to share in-app purchases (cards) for family library (regardless of Google policy). Only one tablet has the ability to grant access. Seems like a petty response from app developer, considering the back-story for how they launched. As for the game... You try to get the opponent to pick up the explode card before you pick it up and if you dont have a diffuse card you lose. Good for one or two games once in awhile with the kids.