Did you know that internet mainstay Google, the search engine that gets 1 billion visitors each month, contains several carefully-hidden easter eggs? It's true.

Google doesn't just return web pages, images, video and information about your old grade school pals. Depending upon the search term, users can make Google do a variety of amusing things.

For example, just try searching for "do a barrel roll" and see what happens.

Google Barrell Roll
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Pretty cool, right? Google created that one as a tribute to the classic Nintendo game 'Star Fox.'

Check out images of a few other easter eggs below.

Google "Tilt"

Google Easter Eggs
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Google "The Loneliest Number"

Google Easter Eggs
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Google "Answer to Life, the universe and everything"

Google Easter Eggs
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Google "Ninja" on Google Reader

Google Easter Eggs
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[For more, visit BuzzFeed]

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