It's a really cool idea that you can control the balloon with the wind although it's quite difficult to avoid the spikes (especially the moving ones)
I'm not sure if that's a common problem as no one else wrote it in the comments but when I play the game and start a level before I do anything, all the objects are shaking. It stops when I start moving the balloon with the hairdryer.
You did a really good job with that game :)