This was real fun!
I got stuck a few times (as in, fell into a bit of the area and couldn't get out again), and most of the later areas were essentially impossible to complete if you didn't immediately get on the right path, which was a bit annoying. Though the quick respawn mitigated the worst of that.
There was also one moment at the start of the game where it wasn't entirely clear what I could jump on and what not, but that might just be me.
Besides that, I don't have much else to add. Great job with this!
(Also, I liked the bouncing game [probably not really a game, per se] you added in the menu!)