Nintendo DS Lite Hardware Onyx —
I am in my 30's and recently bought the Nintendo DS because I was interested in the brain age game and other puzzle games. I would recommend this system, it is easy to use, has simple instructions. It lets you know when it needs to be charged. The stylus is fun to use when playing games.
Even for someone who's older in age it's a good buy and you'll definately use it and enjoy it.