Nice menus and presentation! iirc you said a graphics rework is planned so I won't talk too much about it.
The ball feels a bit too slippery and bouncy, in the tutorial level I made a big jump and bounced off a corner and flew out of the course which was unexpected. But overall I didn't have too many problems controlling it.
The camera could really use finer controls instead of 90 degree snapping (especially wit how slowly it rotates)
I expected there to be a jump button but I guess you're meant to build up momentum instead. That's fine.
Enemies are a bit too... sturdy? I thought it would be easier to bump them off the stage but they ended up bumping me off most of the times.
I don't really get how to use the pushback ability well. It's very short range.
Still, I enjoyed the demo. Good job!