THE GOOD (what i liked, and what stood out for me):
overall, a nice, smooth and well made game. the idea was very unique and had me satisfied finishing the problems. the level itself was intuitive, and allowed the player to immediately understand what was going on! great job!
THE BAD (what i disliked, the bugs, and other problems):
in terms of bugs, there was some collision clipping when the platform moves into the green box, and the game was short, which was unfortunate.
THE HARSH (stuff that would just make the game better, usually just personal opinion, don't take it too heavily :D ):
the tutorial could have been better laid out. maybe a background? or some game juice?
OVERALL: 4,5,3, good job!