The call went out for submissions, finalists were chosen and now here's the chance to actually play the final beta designs in Doritos' Unlock Xbox contest. Here's an opportunity to test the games and chose your favorite. The whole process is pretty much painless and the winning design will become a full fledged game available on XBLA for free next summer. So, play the games and pick the one you wouldn't mind getting for free next year. If you want to learn more about the finalists you can always watch some bio videos produced about them. Sure, in the grand scheme it's advergaming, but at least more heart went into it than Yaris.