"Navigating," Knock Out snorts as he snags a basket -- just in case! -- and leads Starscream onto the escalator. They begin to ascend into the Valhalla of modular furniture, the vantage point affording them a sweeping view of the lower level. Okay, this place really is vast. "What's to navigate? You walk through, look at all of the stuff, and then you retrieve the items you want. It's mind bendingly simple."