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From Navigation-Info Kft.:
Fantastic 3D visual graphic display and a new element of logic have been added to the latest member of the PipeRoll family! You have to rotate the pipes in the right direction beneath the busy streets of New York and clean the polluted liquid with the help of purifying machines. Exciting new levels, new challanges! Continuous, free updates! Features: -fantastic 3D view -Retina Display -new logical element: liquid-purifier -20 unique levels -4 liquids -free zoom -built-in level-solutions (hint button)