I loaded the game. The dragons floated to the top of the screen like balloons, and bounced off the sky ceiling. After 15 minutes I haven't hurt anything. After 5 more I figured out you can touch them without dying by hitting it while on the same plane. I could never hit a dragon enough times to achieve a score before they drifted off screen, never to be touched again, locking the game into restart.
I'm sorry I found your game.