What a cool use of the theme! This has a lot of potential for puzzles and platforming challenges.
I wish there was a way to make time flow faster for those times you're just waiting for the timer to tick down. Just sitting there watching the timer just breaks the flow of movement.
I got stuck when loading into a level. It was two levels after upward shifting was introduced, I think. Just insta-dying whenever I spawned. I got familiar enough with the mechanic by that point to know I liked it though.
Good job! And hopefully that bug gets ironed out .