There's a sokoban element in some levels.
Level 14 had me stumped. I emailed JP for a hint. (Then I realized that I hadn't read the full description on the App Store!) Subsequent to JP getting back to me, I realized there was a genuine problem. He fixed it and the App Store people approved it within 48 hours.
There are 37 levels altogether. I definitely like that. I've done about 19 levels.
There's an infinity mode where most of the grid is hidden. As Your Man travels, the immediate are lights up. This element was programmed very well. Overall, this is fun.