It's time to pop some bubbles the way bubbles should've been popped years ago - with physics. In Bubble Cannon, you can no longer rely on how great of a shot you are. Now you have to take in to consideration that the bubbles bounce. They bounce off of the walls, off of each other, and off of anything else. Don't let the bubbles touch the bottom because it's game over for you if you do. The numbers dictate how many times each bubble must be smacked in to another of the same color before it pops, which makes scoring even more difficult.