RoboZZle Droid — Open Source Productivity App

Over 1024 levels from very easy 1 minute ones to extremely hard, which could take hours to solve. RoboZZle is a cool programming puzzle game invented by Igor Ostrovsky. Your program will control a robot to collect all items from 2D tri-colored field. You can move, turn, repaint cells and call very short (in most cases) functions.