Stomy, I kneel, lol.
I just played the demo 2 times on normal difficulty, but I couldn't find any secrets, I need to look harder. The game runs super well, it's insane how you made this entirely as an enginedev.
This is just an idea though, but it would be nice to have a text log in the 'escape' options menu for the dialogues, if you are moving too fast you might get mixed up in a fight and miss some of the story bits because of that. It's just an idea though, it's nothing serious.
I think I still have the old build with more levels. I think I'll give that a try soon as well. Amazing work!