Put your visual perception and reasoning skills to the test with this twist on the classic marble run game. Set up the board as indicated on the challenge card, then add the pieces noted on the card. If you place them correctly, the marble should roll through the maze to the Target Tower. Includes game grid, 9 building towers, target tower, 3 marbles, 60 challenge cards from beginner to expert (with solutions) and instructions. For 1 or more players, ages 8 and up.