Found this game through your great devlog. The game is good and I quite enjoyed it. IMO the jump buffer is too long. I often jumped unintentionally while holding the spacebar for long jump. Maybe add jump to the queue on key press, not release. Sometimes I thought I grabbed a wall but actually didn't and missed a few jumps. I would make grabbing (and instantly wall jumping) a little more forgiving.
My favourite level was third to the last. It was very interesting combination of game mechanics and the timing is great. It always felt good when I finished it. On the other hand, I didn't enjoy the last level. I felt it was unfair. Many times I timed out just before the end.
Also it would be nice if all the objects returned to starting position when you die. Waiting for the right time to start breaks the flow.
I understand that this game was made in a few days and for such a short time is amazing. But I wanted to share my opinion.