Solid concept, and the purely physical mouse control is definitely interesting to see. The color palette and visual design also works very well for readability.
I found the "jumping" to be inconsistent (which was especially frustrating given how perfectly timed it has to be to make it over the chained dog-spirits) and I'd have liked to have more of a preview of what was coming up for the falling level. I also wasn't personally a huge fan of the spirit's "hnnng" noise.