Click the green flag thrice to start (just in case if there are problems with loading). Move your mouse cursor to hit the ball with your paddle (mobile support too). You need to get a total of 16 points to win the game. Vocabulary words will pop up every 4 points (4,8,12,16).
Note: If the game goes too fast or freezes up, just click the green flag again. Make sure to turn your volume up, there are sounds!