Amazing Google Trick 

1. Go to: http://www.google.com/

2. Type: zerg rush

3. Click button search

4. keep waiting ;)

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+.