PentaFall

Shapes composed of five square identical blocks each fall down the playing area. The object of the game is to manipulate these shapes, by moving each one sideways and rotating it by 90 degree units, with the aim of creating a horizontal line of blocks without gaps. When such a line is created, it disappears from the player's area and adds to the opponent's area. The blocks above disappearing line fall. The game ends when the player 'tops out'