Here is a robot that makes it impossible for you to beat it in rock-paper-scissors. The third version of Janken, has a high-speed hand, tracking system, and vision technology to achieve a 100% winning rate. The Janken tracks the human hand and recognizes its shape in high speed. Using high-speed vision and actuation, it achieves a 100% winning rate.
The above video shows this robot in action. More information is available on Ishikawa Watanabe Laboratory’s website.