You're not ready for Doom. You're really not. This morning I played an hour of back-to-back games in the new demon-bothering shooter's versus multiplayer, and my head still isn't right. It is, however, very happy.

Doom, you see, is intense. It's intense in ways we haven't seen in a mainstream FPS for quite a while. It's not just the aggression, or the speed, or the gibs (though all of those things certainly factor in). It's more than that. It's Doom's cleverness. It's Doom's deceptive, layered complexity. It's the constant, gleefully ferocious back-and-forth between demand and reward. Doom is great. And it's messed me up rather brilliantly. Here's why my head is such a giddy shambles right now.