The Left Brain Right Brain game series is designed to equally train a player's weak and dominant hands via logic-based mini-games that require players to rotate the DS in book style play. In Left Brain Right Brain 2, players use the Touch Screen in 20 new games based on speed, accuracy, association, recognition, memory and strategy. Games like Balloon Attack, Block Buster, Cosmic Seesaw and Space Escape, among others, strengthen the left and right hemispheres of the brain by making players switch hands throughout play. Afterwards, players can monitor personal progress and assess improvement by reviewing development percentages for each hand. Gamers can also tailor their favorite mental-training routine in the new Exercises mode, while testing 'good' and 'weak' hands via three random games in Ambidexterity Check. Finally, players can compete with a friend in both single and multi-card multiplayer mode to prove who has the mental skills to be truly ambidextrous.