The graphics are pretty good, and the rope physics are neat.
But I find it kind of hard, I barely managed to score 3...maybe you could reduce the bear's collision box, and also make the hoops fade out faster after you score on them, I got a game over a lot of times because I went trough a hoop but collided with it when going down...I think the timing is maybe a little bit too strict and could be more lenient...
(Or maybe I just suck at the game )
I noticed that there is no way to go back to the main menu once you start playing (you may want to do that in order to check leaderboards, for example)...If you want to make possible to go back to the main screen but dont feel like making a new button, you could use the back button of the device with this plugin that overrides the default "quit game" CocoonJS dialog and gives you more control.
Nice little game!