Memory is the ultimate mental challenge. In fact, like Tetris, it’s probably just as beneficial to adults as it is to kids. It’s a game driven by the ability to remember things. Keep in mind; life is nothing more than a series of things that you have to remember. Rules, laws, information, names, dates, you name any aspect of everyday life and it involves a bunch of crap you have to retain in your brain. Perhaps if kid’s memories were trained at an early enough age they may remember important variables of survival like pain and fear. Memory is perhaps the best game for young people because it mentally sharpens them for just about everything they will come in contact with throughout their lives until they can’t remember anything at all.