Not very challenging...
I originally bought this game for my father. However, this game is childish and not very challenging. The games that test different subjects are fun for a little bit, but still not that much challenging. It's an OKAY game, nothing more.

By the way, Play-Asia has excellent shipping. I used the cheapest shipping AIR ECONOMY and it came in 4 days. Excellent~

Pretty Good
pretty good. The game really shines in multiplayer mode. All the exercises can be played in multiplayer mode unlike the Train Your Brain game in single card download.