Boxup for Android
Basically, the object is to move your man around and push the smallest box inside the biggest box.
It’s kind of like Sokoban with a few differences. There are obstacles to impede you and some different sized boxes to help you.
The first few levels are quite easy, but it gets rapidly more difficult as you progress. I’ve duplicated the original levels, but I’ve only managed to finish 6 of them. Levels 7 – 14 are crazy difficult!