Afraid of knowing how stupid you are? Then don't play this.
The idea behind this game is to improve your I.Q the longer you play it. Which is kind of the reverse effect for a video game.
It's hard, VERY hard and you will curse and scream at your TV set everytime you pick the wrong answer (the controller also vibrates as if to mock your stupidity) but at the same time it's highly addictive and a lot of fun to play.
It does work and you will certainly notice the difference after playing it for a while (everyday if you can for the best results). Whether or not it will make you a better gamer is yet to be proven (hasn't worked for me in that respect).