Gamewise it feels good and has some nice feedback, the control are swift enough and you really get the feeling you're controlling a flying agile dragon. The art is also quite good, with clear cut shape easy to distinguish, if only the background wasn't a textured mess... orange and blue clash too much when you texture with them, try orange and purple then purple and blue to get a less aggressive color gradient.
As a sidenote : on fullscreen the UI is too small and unreadable.
Saddly I don't think you did much gameplaywise with the theme; Ididn't really feel compelled to use the special attack and just hid in the top and spam the normal attack.