Where have those beloved white and black buttons gone? Fear not, brave new Xbox 360 gamer. They've just been replaced by more conveniently placed left and right buttons (LB and RB) right above the triggers. They're digital buttons. That is, they simply click when pressedunlike, say, the analog input of the left or right triggers, which allow variable amounts of pressure to control, used as gas pedals or weapon triggers in-game. "Developers are real keen to develop with the [shoulder buttons]," Ashley confirmed.