The use of real consumer products like Game Boy, alongside entirely fictional ones like the games "Noble Baker" and "Bra Stuffer," creates a sense of familiarity and realism in the story, while also highlighting the absurdity and artificiality of consumer culture.
By using brand names and discussing fictional products in detail, the narrator creates a world that is both recognizable and fantastical. This contributes to our understanding of the characters and their world by highlighting their obsession with consumer goods and the way that this obsession shapes their lives and relationships.
At the same time, the use of fictional products like "Noble Baker" and "Bra Stuffer" emphasizes the ridiculousness of consumer culture and the way that it creates false needs and desires. This critique of consumer culture is further underscored by the way that the characters in the story are constantly seeking validation and fulfillment through their consumption of products, rather than through more meaningful experiences or relationships.