I'm a big fan of bubble games, I mean I just to love playing them in the arcade. Yet this game really doesn't bring anything new to that. I feel that the delay in the bubbles popping is a bit annoying. I hate the music choice. You should also consider using space or some other button to change between bubbles. I would consider bringing some powerups, using different themes for different stages and incorporating challenges or powerups into those themes (i.e: a machine/steampunk theme with metal beams that cannot be destroyed so that the player must shoot around them. Ice theme in which certain bubbles need to be popped twice...etc)
Reviews for "Bubble Sky"
Simple game with thousands of times used idea and mechanics. Nothing new and you won't play it again after several tries. However it can take 5 or 10 minutes of your free time. Unimpressive music and sounds.
pointless game... the screen floods with balls and it becomes impossible to get rid of them... epic fail