This would make a hella fun game if there was a timer and you had to gather all the gummies before it ran out, and if you did it would send you to another stage that gets harder. It reminds me of Labyrinth for the nintendo DS.
Also I think the grapple should just be a static arm that allows you to rotate the ball (like it wouldnt bring you closer to the grapple) and the grapple feels really slow, like its hard to get it to attach to anything.
Overall I like it though! Its nice that its got a good system of moment. I think even with it as it is you could get a lot of cool schmoves in.