I really enjoyed this! The parts of the wall that start to fall when you jump onto them are a good source of tension. It was cool seeing the environment transition to the town as you start to climb the building walls. The intro cutscene was really charming and set a good tone for the rest of the game.
My first time trying the game, I believe I encountered a bug. At the part where the large ice chunk falls revealing the way up, the environment didn't change in a way that allowed me to proceed. I tried backtracking but got stuck and had to restart the game. On the second attempt at the part with the giant ice chunk, the level became completely different and I was able to proceed. Maybe I was confused, but I think the new parts of the level didn't load properly on my first try.