In last year's entry I included a bonus game mode where you play something similar to Avalanche but a lot easier so it isn't as fun. Your game delivers on being challenging enough to be engaging. I like how your head doesn't get stuck under blocks, I can't imagine how annoying more realistic hitboxes would be.
Did you experiment with some kind of wall jump or wall running mechanic? It might pair well with this game, or maybe make it too easy.
Great job, it's a lot of fun. Here is my current High Score: