I got this one for judging so here are my thoughts:
I think there is potential to this game, but it will need some things added to it at some point. The lack of sound or music was kinda offputting. The collision needs a rework, I had enemies in mid air swinging at me and I was swinging at them, and both of us were just missing.
The healer idea is interesting, though I do feel like I spent most of my time just sitting waiting for the lantern to recharge. Maybe some occasional full recharge points in the map? Also a tutorial on the keys would be nice, I was smashing every key on my keyboard for a while before I could even read the signs.
Overall it does need some work though. My suggestion is find some music and sound effects so it gets some life. Then look into adding a story so we know what we are doing. Doesn't have to be much but just something so we know why we are doing this.