Description: Porolith is another innovative creation from GameDesign Japan. It looks rather like a Tetris game at first glance, but the colors play the role here not the shape. Your objective is to stack the same colors together to have them remove. As game progresses, blocks will begin to have wider variety of colors and the speed of dropping will also significantly increases. Which make it really tough after a while. You control the blocks by using arrow keys left & right, and use down key to increase dropping speed.