The game is for 2 players , in which the ‘ball’ the travels down the length of the LED strip, and will bounce back if the button is pressed when  few end LEDs are illuminated.

 The speed of the ball is changed after every hit, making it more difficult to hit the ball in time. 

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    This project was sponsored by NextPCB: 
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Device is very simple and easy to make and contains the following components:
          - Arduino Nano microcontroller
          - WS2812 Led strip with 60 leds
          - 4 buttons
          - Buzzer
          - Transistor
          - and two resistors
    Unlike simple hardware, software is more complex and is taken from vagrearg.org web. Many parameters can be easily changed in the code, such as: Number of pixels in strip, Bounce-back zone size, Led dots intensity, Points needed to win etc ...
    The game is made interesting with several features.  Firstly, the ball will become faster and faster for every time it is hit back and forth. Secondly, the ball can be hit back within a blue "zone" and will be returned faster the longer into the zone you let the ball come. This is, of course, at the risk of hitting too late. Thirdly, you can boost the return by holding the boost-button down while hitting. The cost of a boost is reduction of your hit-back zone.

    Finally, all the parts are placed in a suitable box made of PVC plate and coated with self-adhesive colored wallpaper, so that the device got a functional and interesting look.