The meaning of the game is to bring from the top to the bottom of the screen several pipe systems of red and blue color from those elements that the computer produces by default. Elements are represented by both blue and red tube crossings and vertical pieces of both colors. Elements can be placed within the checkered playing field anywhere, but they cannot be rotated or moved after installation. Border each other only elements of the same color can. You need to start building systems with elements located at the top of the screen that are already installed at the beginning of the game. There is no time limit, but we have to admit that the puzzle is rather complicated, since it is possible to “bungle” the game with just one mistake.