If the 850 hand-drawn emoji included in Hangouts aren't enough for you, we've got some good news -- there's a small collection of Easter Eggs that add even more whimsy to your discussions. The commands are mostly initiated with an IRC-like "/" followed by certain words. For example "/ponies" sends a colorful little filly prancing across your window. There's also "/ponystream" which overruns your chat with young horses. Of course, you can also punch in the Konami code (if you don't know what that is by now, there's no hope for you) which will change your background to pleasant drawing of a mountain and a tree. Sadly, that one is only visible to the person doing the typing. So far we're having mixed results with the web interface for Hangouts and the commands don't work on the mobile version. But in the Chrome app, everything is golden.
Via: Droid Life
Source: Moritz Tolxdorff (Google+)