This is my favorite platformer from this jam so far. You've got some excellent game juice and the platforming is just the right amount of challenging. My only complaint is the inconsistency of the colored blocks. I know it's the buggy part of the game, but I felt like what happened on what color block was a bit inconsistent at times which just led to a memorization game.
I appreciate the generous checkpointing, and it was a fun experience to play all the way through!