Interesting game. Nice work. I thought the audio was just "OK" until the combat and then I thought it was brilliant :-) Nice "oof" sounds and cheering :-)
One suggesting that might make it a bit more of a puzzler would be to prevent backtracking (left and right). If you've visited a square and then you can't go back to it, perhaps you would have to plan ahead better (and hope for more luck).
Good fun though.