Six Easter eggs built into the Google search engine

What does Easter and "1.2+(sqrt(1-(sqrt(x^2+y^2))^2) + 1 - x^2-y^2) * (sin (10000 * (x*3+y/5+7))+1/4) from -1.6 to 1.6" have in common?

Just type this query into Google Search and you'll get the picture.

Tech Easter eggs, as opposed to the chocolate variety, are hidden everywhere these days from video games to web browsers, with more and more are being uncovered all the time.

Over the years, Google engineers have had a blast building a growing number of Easter eggs into Google Search, whether it's games, helpful tools, or answers to important questions.

Here's a roundup of some of the best Easter eggs from Google Search even the sharpest among us may not have discovered yet - just search the following queries and enjoy. Happy Easter everyone!

Text Adventure Nostalgia

Search for 'text adventure', then tap on three dots in Chrome browser —> More tools —> developer tools —> Console —> type "yes" below the question "Would you like to play a game?"

Vintage Arcade Realness

'Atari Breakout' (in image search). Every bit as addictive and frustrating as you remember. If you get tired of this, you can also try 'Pac Man', 'Zerg Rush' or 'Minesweeper'.

Embrace your inner animal

With Earth Day around the corner, search 'Earth Day Quiz' to find your counterpart in the animal world based on your human attributes.

Browse like the 90s!

Rollerblades, Skate Tees, and The Fresh Prince of Bel Air - the 90s really was the best decade.  Just search 'Google in 1998' and you'll be transported right back to that time online.

Strictly for Seinfeld Fans

Search 'Festivus'.  The rest of us won't have a clue what's going on.

Be a Polyglot

Bored with your chosen language?  Looking to expand your horizons? Easy.  Just change the language setting in Search to <pirate>, <bork, bork, bork>, <elmer>, <hacker>, <klingon>].  Yltlv!