Couldn't get past the second stage, and I think the reason why is a part of the premise that you need to work out: how to damage enemies without getting damaged yourself. This has a lot to do with the concept of playing as the sword, but it's not helped by the fact that when and how you give or take damage is unclear. I couldn't tell if there was touch damage (there shouldn't be) since sometimes I'd try to attack an enemy but take a lot of damage myself, and some audiovisual feedback would go a long way there. I also couldn't tell what the two attacks were supposed to do, which a tutorial could've helped with.