Google's latest front-page Doodle may be its most ambitious yet — a fully-fledged point-and-click adventure game in which you play an alien attempting to gather items to get its grounded flying saucer back into space. The occasion? It's the 66th anniversary of the Roswell incident, where an unidentified object crashed on a New Mexico ranch and gave rise to countless alien conspiracy theories. The Doodle game is rolling out across various timezones; if it hasn't yet reached your region, you can play it for yourself right now by visiting Google's Australian site.