I had a great time playing your game!
It was fun planning a route for the treasure and it was also satisfying to see it works.
Visuals are simple but fits the game pretty well. I really liked the animation of that banker/magnate/wealthy man - well... let's just call him Bobby. I also liked how the pile behind Bobby was getting thin while you are looting. These details are really nice touch.
Level design was nice (and some levels made me smile). As far as for difficulty - it was rather on easy side of the scale (which on game jam is rather positive).
In mission number 4, I got stuck. After looting what I could, game didn't show me the exit button so I had to restart the game (thankfully you have save system implemented). Next time I tried same mission, everything went well.
Maybe adding a faster time option could be nice addition (especially in late levels) - but this is just suggestion caused by the lack of real critique :-D.
I would definitely play more levels if you decide to add them in the future!
Very nice job!