Sporty kids can sign up for a gymnastics, soccer, basketball, swimming, dodgeball, flag football or martial-arts party; preschoolers try their hand at an obstacle course. Basic packages include a coach-led activity, a gift for the birthday child, decorations and a host to help set up. The Deluxe package includes pizza, beverages, snacks and an additional host; the Extravaganza/Gourmet package includes all that plus goody bags. Ages 3 and up.