Image:GBmicrologo.png Game Boy micro is a handheld game console developed and manufactured by Nintendo. The system is the second major redesign of the Game Boy Advance, and is marketed towards the "image conscious" consumer, with emphasis placed on its small size and sleek design. According to Nintendo of America executive Perrin Kaplan, its codename during development was Oxygen. The unit also has a model name of "OXY-001" on the back.