Mind Quiz, also known as Mind Quiz: Exercise Your Brain or Mind Quiz: Your Brain Coach (Nounenrei: Nou Stress Kei Atama Scan in Japan), is a mental training game for the Nintendo DS and PlayStation Portable. It is similar to Nintendo's Brain Age: Train Your Brain in Minutes a Day! It involves playing different training exercises to measure and improve particular parts of the player's brain, such as one's brain age and its brain stress degree. The game offers over 40 training games, each being separated into 4 brain training categories: Calculation — Tests the player's ability to apply mathematics skills. Reflex — Displays problems that mostly require the player to rapidly press buttons. Judgment — Examines how well the player can apply decision-making and thinking skills. Memory — Tests the player's ability to memorize certain numbers, shapes, and the like. Source: Wikipedia, "Mind Quiz", available under the CC-BY-SA License.