Pay attention to the sequence of colors that the game presents to you. It will start with a single color and then gradually add more colors as you progress.
Click the buttons in the same order as the game shows you. Each click should correspond to one color in the sequence.
If you get the sequence correct (Score will go up by +1) all boxes will flash green and it will add a new color to the sequence for you to follow from the beginning.
If you get the sequence wrong all boxes will flash red and your score will be reset back to 0 and you need to start a new game that generates a different sequence
To start the game press Start Game! (Right above the score box)