Metallo is a version of the classic game of Reversi played against a computer opponent. You and your opponent take turns placing pieces on the board. A move may be placed only in an open space that causes an opponent piece to be trapped between any two of your pieces. Once a move is made, the captured opponent's pieces change color and become your pieces. Pieces may be captured vertically, horizontally, or diagonally. The winner is the player with the most pieces when there are no more legal moves available for either player.The game features a metallic-looking game board. You can choose from three skill levels for your computer opponent.