Exercise is the key to good health for both body and mind. Brain Age games make mental exercise fun and competitive. Just a few minutes a day is all it takes to challenge your mind. The portable Nintendo DS� with stylus and touch screen lets you play Brain Age 2 commuting to work, on vacation, or anywhere your day takes you. Fun pick-up-and-play activities: Intuitive gameplay makes brain-training easy for everyone. Train across 15 activities. Solve simple math problems, recite piano songs, or play a challenging version of rock, paper, scissors. You'll love your mental workout! Play sudoku: When you're done training for the day, try your hand solving 100 sudoku puzzles!