mahjong 3KEY FEATURES · 640 Mahjong Puzzles To Solve · 8 Worlds To Complete · Classic 2D & Rich 3D Environments · Random Tile Layout · Great Graphics, Audio & Score.KEY FEATURES · 640 Mahjong Puzzles To Solve · 8 Worlds To Complete · Classic 2D & Rich 3D Environments · Random Tile Layout · Great Graphics, Audio & Score.