Managed to beat it. Love the concept, though the execution needs some work. There are a lot of mechanics to the physics that the puzzles rely on that a player who's just jumping in won't immediately be able to reliably use (the way the player gets pulled by the sword while on the ground, the reliance on throwing momentum for several puzzles, etc). Lots of puzzles I solved without actually understanding what I did, and others I had an idea of how to do it, but couldn't execute without blind luck. I had lots of fun playing it, but I do think there needs to be a difficulty curve tweak, if nothing else.