Very nicely polished! There were a few minor problems, though:
-The top and bottom were cut off on my screen, so I couldn't see my green fuel bar
-The bar at the top never seemed to fill up with anything? I'm guessing it was meant to be XP, but it always appeared empty
-The enemies could really use a HP bar or some indicator of how low on HP they are, I kept wasting all my fuel torching the heck out of them, but eventually I realized most of them died with only a short hit of fire.