It's not really Bioshock, but there's some deep sea action on the Google homepage. And look! A d-pad. Kind of. Move it left and right to turn your sub about, and then pull down to dive. You'll see various divers and creatures under the sea. Good luck trying to do anything fancy as this Java-based web experience has a d-pad that's almost as bad as the one on the Xbox 360 controller.
Keeping up with the times in gaming, this experience supports accelerometer control. If you've got an iOS device or a Macbook Pro, try getting your tilt on. It works!
The theme is to celebrate the 183rd birthday of Jules Verne. You're actually piloting Captain Nemo's Nautilus sub.