1. At the start of the game, there will be 12 green bubbles and 12 red bubbles in the game board, which are exactly 12 pairs.
2. You can select any bubble by clicking on it. The selected bubble will be highlightead.
   
3. If you select a pair which match, both of the bubbles will disappear and you will be awarded 1000 points.
   • New pairs will appear every 2 turns. If it is the first turn after clearing a correct pair, two black placeholder bubbles will appear.
     
   • If it is the second turn after clearing a correct pair, the placeholder bubbles will disappear, and two new pairs will appear at the top of the game board.
4. If you select a pair which do not match, both of the bubbles will change to purple to indicate you are wrong and you will be penalised 500 points.