Cool game, though I found a few glitches. I cannot beat level 10, I think the wall is supposed to become transparent when I hit the switch, but that's not happening so I can't get to the door, also you can wall jump in that level for some reason. There was also a few times where the doors disappeared, but I could guess where it was supposed to be and the trigger to the next level was still there.
Another thing is I think you should've made the main character more of a square shape rather than a tall rectangle if you wanted to do platforming on their head, it would make it a lot easier to platform that way.
I also think a lot of the levels felt the same, you make a recording of you standing still, stand on yourself and then jump to the exit. I like that you can scrub through the recording. The gifs show how to use that, but I never thought to do it and just started from the beginning every time.
Very cool game, especially when made for a gamejam. I have seen the mechanic before, but still a fun game. Good job.