I was pretty confused by this. That's never stopped me from liking...ah, I've said that too many times. Anyway, it was weird because it didn't seem like I could even die in this. I don't see how using the mouse would be so much easier. Okay, upon playing it, it makes more sense to me. I think it is a pretty cool idea.
It's just hard for me to figure out which bubbles are good. You certainly know how to make a game last. The drawings/graphics are pretty nicely done. It's strange, but it works fine. I guess that is what plankton looks like.