Hi! Sorry it's taken me so long to get back to you. Thanks for your comment, it really does mean allot to be. Life has hit hard lately, and I haven't had a chance to work on any deeper games like this one, and it's just really nice to hear that someone enjoyed it, and appreciated some of the little details and synergies that I thought most people had missed.
The level generator is actually based on a nano-tech related paper I read in grad school, and it was about simulating how large clusters of mass form from small particles. I think it ends up making some neat geometry. Harry needed to pretty mobile to get around the resulting weird geometry, and I think the climbing ends up being fun without trivializing the platforming.
I would love to make a "super Harry's climb" one day. One major aspect that I didn't include was having a choice mechanic - when you level up, I wanted to have a choice of two power ups, so you could optimize your build a bit.
Anyways, thanks so much for the kind words, it really means allot.