This game has a lot of potential, but the controls are annoying and unintuitive. I also think that the materials have too high a friction value which stops the ball from moving sideways without going in the air.
Thanks for the feedback. I think I would say that touch is the best input method, followed by mouse. I wouldn't try with a touchpad! A few of the moving surfaces have high friction to make it easier to "ride" them, but I'll look into whether this is always needed.
