Yeah, it's obviously just a crude razor. What I meant is that if it's not on Nintendo, it's a sign you should be more diligent as a parent. Obviously you should always monitor and ideally play the games your kids play yourself, but I can imagine not all parents do that. The Nintendo test is a reasonable alternative, my mom did it in the 90s and I had enough fun games even if I missed out on a bunch of cool PC and Sony titles.