Wow, really good job!
I had to jump through some hoops (I do not run windows) to play, but I am glad I did!
Even though you grabbed assets from different sources, they come together really nicely in the end, and the solid puzzle & level designs, as well as mechanics pull it all together super well!
I found a section right at the start (before entering the first room) where you can walk over the wall and basically run the length of the game or fall off the world), but other than that, I had a pretty smooth time.
Great job, Daytaur!