Hard Logic is game with unusual addictive playing mechanics, stylish graphics and simple rules. 80 levels with increasing difficulty will spend you a lot of hours in the game, you will return to it again and again.
https://play.google.com/store/apps/details?id=com.onemanband.hardlogicfree
https://play.google.com/store/apps/details?id=com.onemanband.hardlogicfree