Neat idea, though the execution falls a little flat.
- It's tough positioning yourself to actually maintain control of the ball.
- I discovered I could hook the ball, but then it just followed and even pushed me without much control, which made it also tough to position into rolling enemies. Since basically, the ball was pushing me away, and the enemies were following behind the ball at a distance without sticking.
It does remind me of Katamari Damacy, so there's potential there. However it does need refinement.