Up arrow is jump. 15 seconds take you to an other backdrop and 30 takes you to an other backdrop. It restarts when you touch the dragons. Everytime there is a new backdrop another obstacle appears.
My friend Yumo helped me make it. The dragon flying in the sky is just for fun. My high score is 18. Have fun! If there are any problems just drop them in the comments. If you want an other backdrop and an other obstacle drop them in the comments. Cdmmn is indeed my home account