Just a little something to help those Little Grey Cells........ As the site is in Japanese here are the instuctions -
1. Touch START
2. Memorize the number's position and click on all the circles in sequence, starting with the lowest number through to the highest number.
3. At the end of the game, the computer will tell you the age of your brain. http://flashfabrica.com/f_learning/brain/brain.html