I got stuck in the spiral slide on the same level. I got the impression framerate glitches are affecting the collision detection (common physics implementation pitfall). I could be wrong though.

Still, very cool. Too cool to waste on marketing in fact :)

Only the OP would know for sure, but it might be the case that this never would've come into existence were it not for the project to land the messages about the company.

Yeah, sometimes the ball does some crazy things due to the way collision detection works. We tried to optimize and avoid most of the issues but it can happen.