Another great game from the Tetris series, Quad Tetris game is all about completing the lines of squares. These squares can be brought to one line from different directions - left, right, top and bottom. You can even rotate a piece by hitting the space bar. And if you wish to drop the piece, hitting the mouse button would be enough. But then you can overlap any piece of square and clear the screen before the time is up. This is all about Quad Tetris follow the instructions that come with the game in order to play it properly.