Google's Zerg Rush Easter Egg is a fun littile time to waster. To try it out, just go to Google, and type in the words "zerg rush" and hit Enter. The search results that appear are not clickable. Soon, you'll notice that search results will start to disappear, destroyed by zerglings, which start dropping from the top of the screen.
Your mission is to save the search results and kill the zerglings using your clicks, but it's not easy. Use your mouse to click and destroy the Os - or zerglings - before they wipe out your search results, and form two large Gs on the page.
Then try -- just try -- to click on the search results you get. When you fail, try clicking on everything that moves.
You'll notice your score against the Zergs in the upper right corner.
When the game is over, Google lets you post your results to Google+ and shows the message "GG", a cryptic way to say "Good Game".
Here are a couple of screens:
According to KnowYourMeme, "Zerg Rush is a popular online gaming term used to describe an overwhelming scale of attack carried out by one player against another in real time strategy (RTS) games. The term originates from the popular RTS game Starcraft, in which the Zerg race is notoriously known for its ability to mass-produce offensive units within a short time frame, thus allowing the player to overpower the opponent by sheer number."
Accroding to a Google spokesperson:
"For nOObs who aren't as familiar with real-time strategy games, there's been a zerg rush on your search results page. Because there should always be time to practice your gaming skills, click on the zerg units to defend the results page and try not to get pwned. Then you can share your APM score on Google+. GLHF!
"(nOObs, pwned, and GLHF are all gamer terms :))" --a "n00b" is a person who is new to a game and doesn't know what they are doing, "pwned" means getting dominated by an opponent and "GLHF" means Good Luck Have Fun.
Try to click on the Os. You can't win -- there are just too many Zergs -- but that's the idea of a Zerg rush. You'll be rewarded at the end with "G.G." -- shorthand for "good game."
There are other so-called Easter Eggs -- hidden treats -- left by the Google staff. Try searching "Tilt," "Anagram" (the page will ask, "Did you mean nag a ram"?) or "Do a Barrel Roll." It's a bit warm for "Let it Snow," but Microsoft still has its own version posted. ("Zerg rush" may not work in all browsers; we've seen this before.)
Here is the video: