Nintendo DS game software: "Professor Ryuta Kawashima's Brain Training for Adults: How Old is Your Brain?" This is a hit brain-activation software supervised by Professor Ryuta Kawashima of Tohoku University, and is one of the "Touch! Generations" series. Key Features: ・Checks brain age through calculations, reading aloud, etc. ・Training content that can be continued little by little every day. ・Professor Ryuta Kawashima appears in the game and gives advice. ・Content enjoyable for children and adults alike. Release Date: May 19, 2005 Publisher: Nintendo ⸻ Condition: ・Used ・In relatively clean condition, considering it's used. ※Please check the photos for the condition. Please refrain from purchasing if you are concerned about minor details. ⸻ Included Items: ・Software only (※Please check the photos for the presence of the case and instruction manual)