Anthony Le, left, wears his homemade "War Machine" costume -- an homage to the comic book and video game character of the same name -- outside E3, the Electronic Entertainment Expo, in Los Angeles Monday. The expo is a trade show for the video game industry that expects to attract 45,000 attendees this year. Le came from Colorado to "be here in the spirit of video games," he told an Associated Press photographer. Microsoft made the first big splash at the expo, unveiling a new motion-sensing game system called Kinect. One game that will be available on the Kinect system lets users moonwalk next to the late pop star Michael Jackson, while mimicing Jackson's signature dance moves.