...what can I say... amazing job.
A simple concept, difficulty curve is perfect, controls are not too easy, not too complex, and the idea of not allowing gravity shifts while falling is very apropriate. The whole set-up is excactly as needed, nothing is in excess.
Graphics and music were good enough not to bother the player, yet simple enough to allow focusing on the puzzle / gameplay.
A deeper story (in the lines of action puzzles such as 'The Company of Myself') would have been to my liking (thus the 1 point penalty), but of course this is up to you to decide.
A truly worthy action puzzle, well done.