Zerg rush is a game that can be played via android and pc web browser, it is very easy first open your android browser and type in google.com url, when the google page has finished loading search word “zerg rush” in the search form and watch what happens.

Some of the character “O” will appear and eat the results of your search, such as a rat that was eating wheat, to kill the “rat” is just click repeatedly the “O” character until all the “O” character disappear.
Careful “O”  character attacks from all directions, especially from bottom area, because if you focus too much on the top attack you will be forget that the bottom search area has been eat by zerg rush virus.