I think this game functions really well. The objective is easy to understand, and the purple balls are a fun obstacle. My only complaint is with the controls. Moving the main ball around feels awkward, and I couldn't get a grasp on it even as I reached the objective. I do think the simple course was perfect for this demo, as it's simple enough to introduce players to the type of challenge they would face in this game. I wanted to know if the course was on a ramp or not. Making that more obvious might be helpful.