Buy in September and get 1 FREE additional month on us! Buy before September 10th and also receive 1 FREE Play Date card. Ergadoozy's memberships lower the cost of play for our returning visitors. Memberships are child specific and only the named child can play with the purchase of this option. All memberships include FREE entry for 2 adults. All children must be in the same immediate family. Memberships are valid any day or time of the week.