I like that this level had distinct sections and wasn’t just a bunch of boxes. It made use of hidden jems and definitely encouraged a sense of exploring. I would have loved to see some hidden, but visible mega-jems that would encourage exploring even more. I appreciated the use of checkpoints, although checkpoints closer to the spike challenges near the end might have been nice, since I probably died a dozen times on the last two.
I thought the big saw portion was really funny and I think some sound effects for a music change when it started moving could have been really thematic.
I thought the way you found the power up was clever and made me feel smart when I found it. I had to look around quite a bit for the first key, I don’t know if there would be a good way to make it easier to find without ruining the exploration aspect. Maybe something subtle with signs or arrows pointing the player in the right direction.
Overall I enjoyed the level!