Wave goodbye to your productivity for today because playing this Google Doodle is mandatory. To celebrate five decades of Doctor Who, Google created this 8-bit "Whodle." The addicting multi-level game lets you control one of eleven past Doctors as you move through a world collecting the letters "G-O-O-G-L-E," avoiding killer Daleks and jumping in and out of the Tardis to get to the next level.

This may be one of the best Doodles of all time. The game is currently live on sites around the world including Google.co.uk, .nz, and .au, but not here in the United States. Lucky for us, the Internet is global and all of the other sites work for us just fine. Now if you'll excuse us, we're going to be good companions and play this game for another two hours.

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[via CNET]