Okay, I'm now on 3k+ hehe, got so excited when I could see my own bubble lol. A few things, maybe a version where you can help people. Multicoloured bubble.... however I do like the way it is now, very pretty. Maybe a new highscore list which shows who has been the "King Bubble" for the longest, rather who it is right now. :)
The enemies remind me of the snakes from Crystal Caves and the bats/spiders.... I want to say from Keen but there's another game I used to play YEARS ago with them but I can't remember. This will bug me now. Anyways great game :D
I like the dotted outline and I love the colours. But you can't see what's coming next which I find annoying and I don't like the fact you can't see the left hand side of the screen, it just ends in the middle of nowhere!