What I liked:
- Arc-based jumping with a clear indicator. The added fact that you couldn't adjust your jump direction midair, you had to remember to use the stomp, made it even cooler.
- I really liked the colors you chose. I think they really work well together.
- The gradual increase in difficulty was perfect. I didn't feel like it went from easy to unreasonably hard.
- I'm a fan of breaking the fourth wall. Perfect spot to put it.
I usually try to provide some constructive criticism in my reviews, but none come to mind. I felt like it was a solid game for a jam. It felt balanced, you kept it small, but polished. Did you happen to make this in Godot as well?