Dora the Explorer Inflatable Ball Playard by Moose Mountain Marketing Inc. $34.99. Come join Dora in her Explore with this Dora the Explorer Inflatable Ball Playland! This adorable play environment features 20 soft-flex balls, a color matching side panel and peek-through windows. Explore with Dora as she discovers tree frogs, snails, ladybugs and a butterfly. Great for indoor or outdoor play.