Despite being an early work, Pinball shares many elements with Murakami's later novels. It describes itself in the text as "a novel about pinball," but also explores themes of loneliness and companionship, purposelessness, and destiny. As with the other books in the "Trilogy of the Rat" series, three of the characters include the protagonist, a nameless first-person narrator, his friend The Rat, and J, the owner of the bar where they often spend time.