In a game 12 x 8 area you have to place different pieces of straight, bended or crossed pipes. On the right there is a conveyor, serving the pipes. Take the lowest and place it on the game area. Try to build a locked up system. If one is ready, it will disappear and your score and the game level will increase. Now there is space for further more constructions. Some pipes will not fit together, so you will have to work on more than one system at the same time. Besides the shrinking timebar will disturb your concentration. The higher the score the faster it will shrink. Each placed pipe makes it longer but not long enough to play an endless game. Definitely the game will come to an end.