The Balloon Stroller is an ultra-rare item that can be found in the Sky Castle or to the left of the Colored Strollers in the Baby Shop. It can be purchased for 1,500. After purchasing a balloon stroller, you can color stripes on the balloon with whatever color you would like. The Balloon Stroller is only used to transport your Baby or pet and does not have any other uses. It can only transport one Baby or pet at a time.