I had trouble with the itch.io version (couldn't move at all sometimes). In the end played the version on your website (assuming it is the same game).
Some fun and challenging puzzles in there. I made it to the end though! :)
I did struggle to get used to the X/Z controls. I'm not sure how it can be done differently though. The only time it was really a pain was in the timer levels. I think these are not needed for a puzzle game and just introduce extra frustration.
Congrats on a solid entry!