Okay I REALLY liked this one! There was some great attention to detail as well as good humor. I too, unfortunately got stuck before the hedgehogs, however I found what I assume is a glitch where if you time the press of the spacebar perfectly it allows you to do a wall jump so I made it through that section.
My favorite sections in the game were definitely the big open Caverns with the hedgehog parkour. It was super satisfying to have the big bounces and very challenging.
The ending sequence was INSANE super cool and intense (I'm not gonna spoil it for anyone). I do feel it was a little bit too penalizing when you made a mistake in the ending bit, cause it would set you back a long way, but it was definitely a thrill :D
Also my frames per second started dropping pretty heavily after a while but that's a pretty minor concern.
this as a lot of fun, good stuff!