Love it!
I love this game! I think you've taken a pretty original approach to the theme "Ladybugs knocking over.." etc. Also, a very good sound track and good graphics.
Only improvement I would like to see is a scoring system. So when you die, you can still see how far you've come, based on the score you have. It also put more purpose in shooting down EVERYTHING in sight. Instead of just letting some things slide, because there is no merit in shooting them down.
It would also make me play it again, and again. Because I have trouble completing all the stages and now I'm just fed up with starting it again, since there is no 'reward' when you die half-way. Just the medals when beating an 'endboss'.