The Doctor travels through App Stores to arrive on Android.
The legendary Dr Who has made his debut on the Android Market through the arrival of the The Mazes of Time game.
The BBC title, which proved a popular addition to the iPhone and iPad App Store, brings the Doctor's quest to defeat his age old enemies the Silurians, Cybermen and Daleks to Android smartphones.
It's BBC's Worldwide's first app for Android following the launch of the iPhone iteration in December 2010.
The app is free to download, but relies on a series of in-app purchases in order to extend the life of the game. There's 100 levels, with puzzles of increasing complexity and difficulty and official Dr Who music to boot.
You can download The Mazes of Time now if you have an Android phone running version 2.1 or above.