4 Hidden Android Easter Eggs: From Gingerbread to Jelly Bean
 

Each version of Android since Gingerbread (Android 2.3) has included an Easter egg, which is always accessed in the same way. The Easter eggs in the latest versions are becoming more complex, with animations and interactivity.

Android’s Easter eggs pay tribute to nyan cat, Tron, zombies, and jelly beans. Each Easter egg is themed to fit with the Android version’s release name.

http://www.howtogeek.com/121197/4-hi...to-jelly-bean/