Hi! I played it and came up with a few things that might improve it. First of all the fullscreen doesn't work (I'm using windows), it increases in size but doesn't scale to the monitor but all I'm able to see is the large middle bubble and I need to hit the windows key to escape. You can't aim the bubbles which was pretty confusing at first before I realized that there was a limitation for that. If you give the player points for every bubble they hit you can create a highscore that they can look at and try to score higher every time they play. It's cool that the platform you shoot from start moving after a couple of levels to add difficulty and having a variation in how the bubbles are laid out and turn between levels is nice, but why so many colors for the bubbles I'm not allowed to hit? It made me have to restart several times because I was shooting at the new colors, I'd suggest keeping one color as the "bad" color and then using the bubbles with different colors as granting some sort of extra effect, like blue ones granting slowmotion for a second or two for helping more difficult shots, or green ones give you *2 points earned for a short time etc. This may make it feel more interactive since you'd have to plan out when to shoot what to get the best effect and max score. The popping sound is good, but why is there only the sound of one bubble popping when 3-4 bubbles pop at once, make it sound like you are twisting a whole bubble wrap paper when scoring a big hit! Such sounds are very satisfying. You can use a single popping sound when hitting the bad bubbles because the bubble you are shooting off obviously get popped so why doesn't it make any noise? Well done on your game!

Nice job! To make it more interactive, I'd suggest adding a color swapping option for bubbles the player shoots at some point and different sized bubble options to fit through smaller openings in later stages. An aiming ability and function to bounce bubbles off walls would also be fun. I like how the bubble launcher starts to move but maybe it can be controlled by the player too. 

I found the bubble moved really fast, the animation seemed choppy. Would be great to make it smoother and give the bubbles some effects and more sounds. These games really do well. I hope you make it more, it's a neat type of game to make. :)