Use arrow keys to move and up to fly. Be careful, as the bubble is fragile in most environments. Most surfaces are bound to pop the bubble, with the exception of soapy blue surfaces.
This isn't entirely finished at all. I've created the main bubble sprite, but there aren't many levels right now. Oh, I also have an unused (but still dandy) sprite inside. If you want to make use of him and 'adopt' him, then feel free to pop him inside your backpack and let him explore your projects. Take good care of him! Special thanks to: SuperFredge for moral support.