First of all I would like to thank aximsite for making me the contest winner of the game!
I must admit that I am not very good at this kind of vertical scrolling shooting games, but the stylus control option did helped me playing better than I should be.
However I am having trouble killing the boss of level 4. It just hide at the bottom of the screen where I cannot shoot and pour out lots of bullets such that I can only play hide and seek with it. And very soon I got shot and killed.
Anyone playing this game have any hint as to how to tackle this boss?