Interesting. ….

Procedure of  Flash Fabrica Game:
1. Touch ‘start’
2. Wait for 3, 2, 1.
3. Memorize the number’s position on the screen, then click the circle from the smallest number to the biggest number.
4. At the end of game, computer will tell you how old your brain.
Good luck !!

http://flashfabrica.com/f_learning/brain/brain.html