Good god, this game is boring. The easiest way to win is just to stick guns onto the empty air and go from there. There is absolutely no point to adding any bubbles at all when you can just add guns. The gameplay is a simplistic and derivative shmup without any shred of difficulty. You can do better!
Not the most ambitious game I've ever played, but the mechanics are sound. Also, it looks like the sprite has a blocky penis when he's falling. Is that intentional, or what?