I think the problem is from my sound driver, thanks though.
I have catched the progress, there'll be 11 levels, 2 bullet types, 3 types of monster and a boss. The level design is all done, now is some more graphics, voices, and story. :)
<img src="http://i652.photobucket.com/albums/uu246/01lifeleft/screenshot2.jpg" border="0" />
The stone is a small puzzle in this game :P