This game is very cool! Good work! I wish i could do such a cool shmup. At the moment i am trying to create one shmup in unity with a friend (he does the graphics) since a few months.
You should not talk only about the problems in your game page, i did not found many problems, the game runs very well, the music is awesome :) Your game page could use a few picture (at least one for preview) I paste a few pictures here, you can use them if you want.