The brilliant Dr. Eureka has challenges for you to complete! Pick a challenge card, 3 test tubes, and 6 colorful balls to solve the problem. Carefully move your materials from tube to tube without dropping them, and be the first to position them as illustrated on the challenge card to win. This problem solving game builds fine motor skills, visual perception, focus, attention, and processing speed. Includes 12 Test Tubes, 24 Colorful Balls (8 Red, 8 Purple, 8 Green), 54 Challenge Cards and Illustrated Rules. Fun for 2 or 4 players, ages 8 and up.