Here we have for you this unique online mahjong game. This interesting online mahjong game uses the Japanese rules. Just as the title of the game hints, this particular online mahjong game is played between two players. So obviously, both the players of the game will require to put to use their intelligence and mahjong game skills to outperform the other. The game may not be very easy for new players but a bit of practice will surely help improve the performance. You will need to use the mouse to play the game.