I liked the design of the character and was nice that you added a timer of when the gavity would shift. Despite being pretty intuitive, the game would benefit of some instructions. Also, I would recommend you to add more friction on the characters movement, show more of the room (otherwise, in some cases it could fell as a cheap way to get killed), and, above all, I would make the gravity shift go faster to increase the pace (additional tip: pages really benefit from good demo material and descriptions). In any case, good job, mate. Hope you can check and rate mine aswell
Have a great week :)