Kiran Patil, a 24-year-old aerospace engineer from Bengaluru, India, has officially claimed a spot in the record books for building the world’s smallest functional arcade machine! Standing at just 0.98 inches tall, the device is roughly the size of a fingernail and significantly smaller than a standard AA battery.
Despite its microscopic dimensions (0.6 inches long and 0.59 inches wide), the machine is fully playable. It features a high-resolution miniature display and four tiny tactile buttons that allow users to play an emulated version of the 1978 classic Space Invaders. Guinness World Records officially confirmed the achievement on July 20, 2025, after a rigorous verification process to ensure the machine was a functional electronic system and not just a model.
This isn’t Patil’s first brush with extreme miniaturization; back in 2019, he set a record for building the world’s smallest working drill, which measured only 0.24 inches long. He began working on the arcade prototype during the COVID-19 pandemic but spent several years refining the software and sourcing the smallest possible microcontrollers to make the project a reality. Patil says his goal was to push the boundaries of microengineering, and he plans to continue exploring how small functional technology can actually get!
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