Reflex Square, is a game that can be useful to train reflexes.
  It includes 3 game modes:
  - 1 button press after changing the color to red
  - Many rectangles as soon as possible to click appearing rectangles.
  - For 2 players - the winner is the one who quickly click a button to change the color to red
  The application measures the reaction time and saves records.
  If you like it, do not forget about the positive comment.