I was still a pre-teen when Jak II came out, and it definitely was not aimed at me. I remember being really disappointed that they'd made the game all dark and miserable. I never played more than a few minutes of it, and never bought a copy of my own. I actually haven't touched the series since, which is a shame because I might appreciate the darker tone more now -- although my 'dark phase' kind of ended when I hit my twenties. :)