Drop in and win! "Shape up" strategic thinking skills with TetraTrax. Players slip their puzzle tiles down the rails into the clear tower, and score 1 point for every opposing tile their puzzle tile touches. Watch out, though...you'll lose a point if you leave open spaces in the puzzle. The tension builds as the height of the puzzle grows. Includes game tower with built-in score keeper, 24 game tiles in two colors, and guide. For 2 players. Grades 1 and up.