This was neat! I like how you themed each area, and really enjoyed the funky groove in the red area.
The wall grapple was a little difficult to wield, but workable. I had a hard time understanding how to use the hat ability though. I see in some of your replies that there was a bug/mismatch so I may have been hitting that as well.
I had a lot of fun playing though! Great idea with the movement and designing the level around grappling around, it was very fun to try and navigate through