Google has recently developed a mini-game called ‘Zerg Rush‘ into its search engine. Just head over to Google, type in the words ‘zerg rush’ and start playing.
I won’t spoil it and tell you what happens a second after typing in those words, just be ready with your mouse. As a tip, it comes from every side, so keep your eyes open and be quick! At the end you can even share your score on Google+. Have fun!