I do not like "die and retry" game.
I had a bug at level 15, the ball stays stuck on the left or moves with a very low speed. I refreshed the page and had to restart at level 1, the ball was still too slow, so I stopped.
Reviews for "Jumping Ball Deluxe"
I like the basic idea, but the gamedesign was lacking. I completed most levels - including level 20 - on the first shot. On others, I took longer just because it required a very precise angle after several bounces.
meh.