I really enjoy this style of puzzle in games. Solid job putting this together.
Once I realized what I needed to do in most screens, the act of making it happen wasn't as fun. I discovered some patterns I could use to reliably platform without giving myself ceilings or otherwise blocking myself from using previous platforms - that part felt interesting, like a self-made playbook. But there weren't many challenges to those patterns in the level design.
Overall, really appreciate the simple control scheme and real-time telegraphing of being able to stamp yourself. The rest I had to figure out after a few browser refreshes.