Awesome game. I'd recommend putting some unlocks earlier for people who have a lot of trouble with the difficulty-- I had a very hard time getting my first clear on normal, and I think the experience might put off people with equally poor skills and a lower tolerance for frustration. Specifically, you unlock two weapons on your first normal completion (unless I did something weird I didn't realize) and one of those (probably the knife, since it's more obviously not 'better' than the sword) could be a reward for beating the second level instead. A gun would be more thematically appropriate as an unlock there, but doesn't fit the style too well in the PC's hands, and maybe there isn't one in the game yet (idk, I just beat normal and not even the void yet). Also, I got a 47 combo, but I didn't get the achievement-- maybe it's because I hadn't finished my first run yet? It wasn't on my winning run, it was a few times before that.