Create lines in this game of falling blocks.. Remove all lines of the falling blocks. Connect the lines on the blocks (horizontally, vertically or diagonally). If a line is 3 or more in length, then the line will be cut from these blocks. Blocks with no lines are removed from the game. Remove as many blocks as is indicated in order to go to the next level. You move and rotate the blocks with the arrow keys and let them fall by holding the space bar.