Tap a pipe to turn it a quarter turn clockwise (hold to keep it spinning) and route the coolant from the pump on the left to the reservoir on the right — the flow lights up as far as it reaches, and open ends spray. Every level has a hidden winding run; the board grows from 5×5 to 8×8 as you climb. Every quarter turn counts: solve at PAR (the minimum) for a 2× PERFECT FIT, within two for 1.5×, and chain perfects for a streak bonus. +2,500 every 5th level. The clock refill shrinks as you climb — run dry and the run ends.