Can you stack the blocks to recreate the image shown on the challenge? Watch out for shooting stars - the color of the stars changes when you turn the block! To successfully complete each challenge, the position of the blocks AND the color of the stars must match. Helps develop spatial insight, problem solving, and planning skills. Includes 4 double-sided blocks with colored stars, plus a booklet with 80 challenges, ranging from easy to expert. Single player, ages 6 and up.