This trailer offers a television commercial from Portal 2, Valve's upcoming first-person puzzle/platformer sequel. The cinematic clip features Atlas and P-body, the game's co-op robot protagonists, the voice of GLaDOS, and, of course, portals. Interestingly, MCV quotes Valve's marketing VP Doug Lombardi talking about how they've found ad agencies to be unhelpful in helping market their games. "No one knows the product better than the folks who made it," he tells them. "We've had many creative kick-off meetings with agencies over the years, and you’d be shocked by the treatments that have come back. Copycat treatments. Cliché treatments. Treatments that reveal the agency wasn’t listening in the initial meeting." The embedded version follows.