My first thought was that "Game Boy" was a very generous description of a Flipper Zero, but the linked device [1] is indeed much more similar to the Anbernic-style emulator handhelds, which makes me wonder whether plausible deniability [2] was the main goal of the design, or just a convenient bonus on top of having shells and designs readily available.

[1] https://www.thedrive.com/tech/34817/this-25000-game-boy-is-m...

[2] The aerial is kind of a giveaway, admittedly.