Decent, fun games, but gets boring after a while. You'll use it a lot for the first few months, then get sick of it.

User Rating: 7 | Touhoku Daigaku Mirai Kagaku Gijutsu Kyoudou Kenkyuu Center Kawashima Ryuuta Kyouju Kanshuu: Motto Nou wo Kitaeru Otona no DS Training DS
At first I thought it was great, and I played it a lot, but the game does get boring after a while and you won't play it near as much after the first couple months of having the game. Some of the modes are fun, but it's a bit repetitive. If you like sudoku you'll play it a lot more, probably, because there's quite a few sudoku levels on it.
The different modes are pretty fun, but some of them are annoying. There is one mode where you use the touch screen to play piano, which is very annoying because you very easily miss the keys. Also, when you are playing games that involve numbers, sometimes you get the question wrong because it read your numbers wrong. So, the game has some flaws.
But, there are some fun parts to it too. As you progress through the game you unlock some more modes (some annoying and frustrating, some fun) and you learn some more hints about the game.
Overall, it is a decent game, but not one that you'll use every day. (which is its purpose.) After a while you'll probably only use it around once a week or less. If you already have Brain Age 1, than you should probably only buy it if you really liked it. (Or use it a lot) I can't compare it to Brain Age 1 because I don't have it.