Based on the Nintendo DS video game, this board game will give your child some real mental exercise, and because it's played in groups your child will also gain some practical teamwork skills. Each team takes turns spinning for category and drawing cards to complete challenges in five different categories: Analyze, Compute, Identify, Memorize and Think. Correct answers are rewarded with chips. At the end of 4 rounds of play, the chips of both teams are weighed against each other with a scale, and the team with the "heavier brain" wins. This fast-paced game will keep the mind nimble and the funny bone fully functional. (University Games, 2-4 players, $19.99)