In each turn you are shown a pattern of 4 colors on the bottom row of the RGB LED panel. After a moment they will hide and you should build the sequence using joystick up/down. When you are finished with each LED, move the joystick to right to go to the next one. After you make your decision about all four LEDs, you will see if you have reconstructed the pattern correctly or not. After a short while, the game restarts with a new pattern.