Love the art and character design. The timing of the jump being so precise was a bit frustrating, as I'd very often run off a ledge just before the jump and fall. Which then led to a lot of waiting around by ledges while I wish it could move along more freely.
Perhaps if the windup for the jump was shorter and could still happen a moment after you leave a ledge it'd feel a lot better.
I did enjoy the times where I could run freely, throw the sandbags at enemies, and run through them or jump on top of them.