I enjoyed playing this.
The mechanics are straightforward and you introduced it pretty well. A couple of things I want to point out though is that first, you get sent straight back to the start of the game which could be an issue for some players. It might be better to send them back at the start of the level for faster cycles. Second, the jump arcs are a bit too hard to control mid-air. Other than that though, you made yourself a really great game. Love the floppy idle animation and even the small bounce frame after the jump which was also solidified by the nice sfx upon landing. Great job!