The game of Wiffle ball is a variation of baseball. These have included flag football, basketball, volleyball, kickball, wiffle ball, and many more. Wiffle ball executives originally thought the order was a joke. Some wiffle ball players have built fields to resemble major league ballparks. Rivera credited playing wiffle ball as a youth with creating his swing. The inflatable games include baseball, basketball, wiffle ball, and skee-ball. There is a backstop for Tee-ball or wiffle ball as well as playground equipment. But not all wiffle ball fields have been modeled from major league ball parks. In the right field corner there is a wiffle ball field and a playground. The Wiffle ball is designed for indoor or outdoor play in confined areas. "Wiffle Ball" (2008), "Timmy Text Message" (2009), and "White Zin" (2010).