Really cool idea. Took me a minute to get a hang of the jumping mechanics, but the idea of a dragon bus is fun and getting more jumps with each scale is a neat visualization.
Could definitely see a bigger version of this with different scales/foods giving different powers or something along those lines.
There was a weird glitch where the audio seemed to get louder as I approach the top-left area of the screen. Mostly noticed on the 3rd level.
Good work!