If a game is really bad, some of the EGM reviewers would destroy it in every way. To the point where they wouldn't post anything good.
I also think bad video games shouldn't be able to advertise in a magazine that gave it the bad rating.
It's the magazine's fault then, if they gave them a bad rating but still use their advertisements, then their either broke, idiots, or both. I don't know how much they could spend to make a bad game but pay people to advertise it anyway.