Ants in Phone (com.scoompa.ants) on Google Play
Ants appear in your phone, no matter which app is currently running. It looks as if the ant is trapped inside the phone's screen.Touch an ant to smash it.This app makes using your phone or tablet more fun. Every once in a while, an ant will walk across your screen. If you react quickly and smash it, you get points.You can see statistics how many ants you smashed and what is your hit rate.Ants look and move in a realistic way. You can use this app as a prank, install and activate it on a friends phone, and watch how she reacts as the ants suddenly appear.You can configure how often ants appear. There are many other configuration options. Won't drain your battery, very power efficient.