Ok, so when I first sat down to play this I'll be completely honest in saying my mentality was "I need to beat this because RawkinJawsh figured out/beat my game and I'd like to return the favor in full". Platformers aren't necessarily my thing so at first I thought it might be a slog.
Really quickly though my mentality changed to "damnit! I must beat this. It is my destiny" and I was really into it. I am particularly impressed by how many different puzzles/concepts/ideas you came up with for level design all based around the simple mechanics available from the beginning of the game. At first I was like "ya ok, how are we gonna have 15 different interesting levels with this" and every time a new level loaded I was like "....ok fine this one's cool too".
I liked the levels that were more puzzley compared to the more platformy ones. Like the other commentor said I did feel like some of the tolerances for those platformy levels were a little tight, but that also comes down to personal preference a lot I guess. The last level in particular was pretty rough :p
I really thought the art really worked. It's been a few days since I played but I remember the music being a chill good choice for the game. I had fun with it and will definitely think back to it when Im working on future projects. Nailed the simplicity/complexity levels. Simple rules leading to complex stuff, really cool!