The novel is aptly termed a "black comic" novel, as the book takes the reader back-and-forth between the real world we all live in, and the fantasy world that Henry has created. The parts of the book that show us the "Universal Baseball Association" show us the fantasy world from the perspective, not of Henry, but of the players in the Association. Through these expositions, the players, managers, and league executives come to life.
Robert Coover's work here delves into deep philosophical issues, one of which most certainly is the notion of creationism. Henry, through his game, has become a "god" of sorts. His game determines who lives and who dies, who fails and who succeeds. It has been suggested that the name, "J. Henry Waugh", is a veiled reference to "Yahweh", one of the Hebrew names of God in Judaism.