This was really cool!
My only complaint is that the difficulty ramp is a bit more like a difficulty wall, haha.
Also, I felt like the early level where you have either door-unlock friend or slash-boy had a little too much open space, considering the entirety of the puzzle is basically getting around skull-dude at the bottom. Led to much needless hopping back to the skull dude on restart.
Oh, I love the art by the way! My main recruiter guy felt smug for some reason. I mean, I guess he's super rich, hiring all these mercenary adventurers for single tasks...