It's quite fun, but some levels are really challenging, as I'm having quite a bunch of trouble with the controls. I love the look of the dog, but the background and floor could maybe be more stylized.
I was really confused, because sometimes the level would just reset itself, until I figured out, that you die if the ball is on top of the dog. I think a simple "You died"-screen would help with this.
All in all, quite a fun game that is simple in its presentation, yet quite challenging gameplaywise