Brain Age 2 impressions from Nintendo World Report.
"I got a chance to play through three different brain training games at Nintendo's display at the Barker Hangar. I must admit, I feel really dumb right now. That is because the games in Brain Age 2 are much more difficult than in the original.
The most challenging one I tried out is the word wheel, where letters to some random word are scrambled on a rotating circle. You need to spell out the word one letter at a time using the game's excellent handwriting recognition to clear it and go to the next word. This is easy enough to do with four- or five-letter words, but when the game throws you more than six, you'll be at a loss. The rotation of the letters makes it very hard to concentrate on them and determine the word, and it took me a minute or more for some of the medium-sized words before I had any clue about what it might be. I just gave up completely when I saw the 8-letter word. It was quite intimidating, but it was also quite challenging, which is ultimately the point of the sequel."
Full Source: Nintendo World Report