very good.
i see a TON of potential in this. this looks like a shining proof of concept! if u polish the graphics, add some sound and fine tune the actual mechanics of the game, i think this will be in the top 10 all time scores. at the very least get a daily 2nd. iv played a lot of games that use the physics engine 2d or... sumfin like that. im sorry i cant help more, but i know that there is a physics engine that has 2d in its name. if u use that, the game may be a little more.... fair :3 i strongly urge that u return to this game and work on it more, i really truely see this game going very far in NG. graphics, music, and the actual control mechanics are the 3 main areas that i think need work. u may also consider increasing other trivial things, such as the speed of the dragon vs the enemies, the the size of the screen, other minor things like that. 7 stars for potential, and a 4 rating with the little... face dude lol.