Google is known for its impressive Google Doodle however, there are several other interesting features in Google search which are hidden as Eastern Eggs and sometimes not so hidden like the Google Pirate Edition.
A new treat can now be found on Google search when you search for the term "Do a barrel roll". When you perform this search at Google.com the search page will flip over and rotate just like a plane would do while it is doing a barrel roll.
According to Wikipedia:
A barrel roll is an aerial maneuver in which an airplane makes a complete rotation on its longitudinal axis while following a helical path, approximately maintaining its original direction. It is sometimes described as "a combination of a loop and a roll". The G-force is kept positive (but not constant) on the object throughout the maneuver, commonly between 2-3 G, and no less than 0.5 G.
So go ahead and to a barrel roll at Google by search for "Do a barrel roll" or just click on this link.
Bonus: Try searching for "tilt" and "askew" as well.
Thanks for the h/t @slate.