[Relaxing Dragon]

Definitely an amazing game, and one that I've been waiting for for a long time (seriously, last great zombie game was Dead Rising all those years ago). And it's also quite difficult; even normal can be a challenge depending on the situation (damned boomers, always popping up at the worst possible moment >_<).

And it's definitely got a huge replay value. Everything changes except the actual levels, and they're nice enough that that's not a problem. I've gotten at least ten hours just replaying the first campaign over and over. And that was just on day one.