Super Meat Boy meets VVVVVV? In my book, games that create innovative mechanics and have the level design to support them are golden. Yours fit it really well, and was very polished too. If I would point out something I didn't like, I would say that the character is way too heavy for the speed that the game requires you to play under. Like, sometimes you must react to something that just appeared onscreen but you already made the jump and can't really make significant changes in your trajectory in midair. The fact that you can't completely stop your horizontal velocity in midair to fall straight down is also something too. But yeah, I understand this is a game jam and I'm nitpicking. This is a sign that I liked your game and there's not much to criticize. Good job!