Nice job! The melody is really memorable, and I like the transitions with the open hat. You stuck to your theme of old videogame boss perfectly! The instruments and style of the piece really were loyal to it. Also like the form of the piece. I wish you had some drums in there, though- something cute and simple, at least. Also, not a big fan of the fade-out ending. It always seems a bit lazy to me. Maybe a little repetitive, too, but that's okay. Like I said, memorable melody and good job establishing the theme of the song. Keep it up!