Gameplay
Using a variety of pipe pieces presented randomly in a queue, the player must construct a path from the start piece for the onrushing sewer slime, or "flooz" (the 1991 Windows version's help files refer to it as "goo"), which begins flowing after a time delay from the start of the round. The player can keep clicking the same square to change the pipe pieces. The flooz is required to pass through a given number of pipe pieces in order for the player to pass to the next round. Some rounds also include an end piece, which must be the end of the pipeline the player has constructed, in addition to fulfilling the minimum pipe length requirement.
Completing the sewer pipeline in the time allotted allows the player to advance to the next level, which means a shorter interval from the start of the round until the flooz starts flowing, as well as faster-flowing flooz. On higher levels, some special pipe pieces appear in the game, such as reservoirs, one-way sections, and bonus sections. Obstacles and wrap-around sections also appear on the game board on higher levels.
If a player is able to finish the level using five cross-section pieces and filling them both ways, 5,000 bonus points are awarded.
Read more about this topic: Pipe Mania