The intro screen is gorgeous. It immediately pulled me in. The dual-world mechanic is super creative. It looks simple at first, but it's way more demanding than it seems. Having to control the movement with one hand while carefully managing the mouse with the other almost feels like playing an instrument; you can't zone out for a second or you'll flip the world under yourself and drop lol.
I actually liked the slightly sluggish movement too. It makes the rolling feel weighty and adds to the challenge instead of feeling frustrating. And the music fits perfectly, cute and energetic. This is a really clever concept, and surprisingly intense once you get into it.