The boss is to powerful I find you get to the boss and its extremely hard all of a sudden. If what he spit out was a little less damaging that would help,
Also Im not find a "How to Play" you should have that in there I was half way through the game before I realized how to double click and how to aim. just throw the How to ply in there some where.
 "Trafalgar Origins"){kind=icon}
 "Bunni: How we first met"){kind=icon}
 "Death vs. Monstars"){kind=icon}