Zerg Rush is a Google easter egg: type in "ZERG RUSH" and play the game

Type ‘Zerg Rush’ Into Google for a Pleasant Surprise
Many zerg appear and want to eat your serach results. Click and kill them :-) Good luck and have fun .Click here to open the game: http://goo.gl/38w9p
It doesn't work with Internet Explorer. Try Google Chrome (Browser) 







If you type “Zerg Rush” into Google, the “O’s” in Google take over the page. If you double click, your cursor turns into a plus sign. Click on the O’s and you wipe them out. Google then tabulates your score and, in a social media twist, lets you post your score on Google+.

For the uninitiated, Zergs are an alien race of insectoids in Blizzard Entertainment’s StarCraft. In the game you “rush” them by amassing your battle units and blitz them.