The key to Rocky's dominance is a blisteringly fast hand-tracking system. An infrared motion sensor tracks the movement of your hand and fingers a hundred times per second. This data gets fed into a mini-computer buried inside Rocky's body, which uses algorithms to determine whether you're throwing rock, paper, or scissors split seconds before you've fully extended your hand. Once it knows your throw, the computer directs Rocky's robotic hand via servo motors to make the perfect counter move.
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