Strangely enough, it works. The $2 Sky Burger challenges you to build either the tallest hamburger possible or a specific hamburger from a slew of randomly falling ingredients. As the hamburger gets taller, the game's physics kick in. The hamburger stack, which shifts from side to side to both dodge and gather ingredients, gains its own sense of weight and inertia, thus becoming more and more unwieldy. Get the right toppings on the burger and you'll walk away with a handsome tip and "flair" (those colorful buttons memorably lampooned in Office Space). Add the wrong ingredients, and you'll watch your tip percentage rapidly decline.