Enigmo is a 3-D puzzle game in which you have to manipulate various objects--slides, bumpers, cannons and such--to maneuver cascading streams of flowing liquid from one vessel to another. You can move or rotate the puzzle pieces to divert the stream of droplets so they can reach their target. The faster you manage this the better, as your points are determined by your speed (and a rapidly descending bonus clock in one corner of the screen).--Peter Cohen