Wired covers Halo 3 usability research at Microsoft Labs.

The designers at Bungie Studios, creators of the Halo series, have been tweaking this installment for the past three years. Now it's crunch time, and they need to know: Does Halo 3 rock?

"Is the game fun?" whispers Pagulayan, a compact Filipino man with a long goatee and architect-chic glasses, as we watch the player in the adjacent room. "Do people enjoy it, do they get a sense of speed and purpose?" To answer these questions, Pagulayan runs a testing lab for Bungie that looks more like a psychological research institute than a game studio. The room we're monitoring is wired with video cameras that Pagulayan can swivel around to record the player's expressions or see which buttons they're pressing on the controller. Every moment of onscreen action is being digitally recorded.

Midway through the first level, his test subject stumbles into an area cluttered with boxes, where aliens — chattering little Grunts and howling, towering Brutes — quickly surround her. She's butchered in about 15 seconds. She keeps plowing back into the same battle but gets killed over and over again.

"Here's the problem," Pagulayan mutters, motioning to a computer monitor that shows us the game from the player's perspective. He points to a bunch of grenades lying on the ground. She ought to be picking those up and using them, he says, but the grenades aren't visible enough. "There's a million of them, but she just missed them, dammit. She charged right in." He shakes his head. "That's not acceptable."