Rock, Paper, Scissors is a very interesting game and sometimes it can be decisive in situations between friends. But no one in the world is unbeatable at it except Janken who can not and does not ever loose at it.
Janken is a robot developed Ishikawa Oku Lab at the University of Tokyo and even IEEE's Automation Blog points that it never looses. Now, you might think that there is a catch and as a matter of fact, there is. As the starting of the video also tries to explain it with a pictorial representation the robot works on the basis of visual feedback and high speed physical response. What that means is that as soon as you make your move, a visual feedback is taken by the robot and the winning move is drawn with a high speed. The speed of this move is so high that to naked eyes it seems as if the robot has made the winning move on its own and as if it can read its opponent't mind. So technically, there is no way you can beat this champ.
Lets have a look at Janken, the robot with 100% winning rate.
There is something you can learn off of Janken. To win at this evergreen game of Rock, Paper, Scissors you either have to know your opponent really well or be devastating quick.