Almost perfect...
It's simple, it's fast paced and it's fun. This is what usually makes a popular game. And you seem to have gotten it all. Yet, I still have som suggestions: 1. It's simply too hard. There's no real way of avoiding the dragon hunters besides flaming and since there's a serious freeze-time on the you quickly die. So I would suggest that you implanted some sort of jumping mechanism or a way of healing yourself or perhaps a larger arsenal of weapons.