The Story of this game as well as the humor and such are pretty good. The artwork looks amazing as well.
Most of the time the enemies were humans and not bubbles which I didnt quite understand but the idea behind it was pretty unique. The controls were hard to understand, for example, I didnt really know how to effectively use the right click attack for the first 5ish tries or so.
But overall, the art is really good as well as the concept, so for a 2nd game you did a great job, keep it up! :D