Daily train your brain. Get ready for a happy old age through daily measurements. The slightest delay the aging of the brain. 4 Category. 1. Memory. 2. Calculation. 3. Concentration. 4. Observation. 15 different types of mini games. 1. Check direction. 2. Calculation King. 3. Make a pair. 4. Check shape. 5. Memorize order. 6. High or low. 7. Count card. 8. Track the ball.