I like the idea, but it feels very unfinished currently. After the first door in the dungeon, the other two just seemed to lead into nothing, and it was too dark to really see anything. The fact that I have to manually quit the game every time I fall is pretty annoying, especially since it can be hard to see the drop. The game needs a way to quit built in.
The range of the knife attack also seems a bit too big, and it felt inconsistent at times. It also could be made a bit more clear when you hit an enemy, as I didn't really notice the sound at first and was hard to hear at times.
I did like the tutorial, though I would prefer not having to go through it every time I start the game.