Paperhood Saw and Paperhood Mont are two paper-thin characters who inhabit the world of Otostaz. As the game begins, Saw appears on screen above a matrix of brown squares. A never-ending stream of icons representing water, earth and wood trail him in a virtual supply line. Saw's job is to lay down these icons in contiguous water-earth-tree combinations in order to create small houses on earth patches.

Plop down a 5 x 5 grid of these combinations and you'll create a little neighborhood. Once you've laid down the foundation of your fledgling town, drop down additional building supplies to develop the houses into bigger buildings, all the way up to towers which resemble the Eiffel in France. At one point, if you reach a certain level of development, the towers shine rays of light towards the heavens in an impressive visual show.

Each level moves slowly from left to right, destroying columns of development on the left while new columns rises on the right. Your goal is to build structures and develop them fast enough so that the erstwhile town reaches full avenue strength by the time they fall off the map. Fast paced, combo-filled and unique, Otostaz provides a welcome change to the staid puzzle genre.