Ah yes, I remember from where I heard that music before! It was in the animutation "Suzukisan!". I wish you people submitted more of those here. I really did like this game. While it doesn't hold a candle to "RaidenX", still good. I think it got a bit repetitive at times.
The graphics are quite good. The best example of this is probably how creative the enemies are. I like how you continually fire. In games like these, you need that anyway. I didn't know you were supposed to collect the gray people at first.