I think the art style and animations are what I find most attractive about this game. Although weapons are simple and limited the animations are very satisfying. I think if you added a whole bunch of different punches or karate kicks that would improve the replayability, not that it's much of an issue anyway. This really reminds me of the Binding of Isaac which is a good thing, it has a similar combat system and satisfaction when completing levels. Overall a very good game and quite well polished!