Cool little game. The top down characters were quite well done.
The flame jets seemed a bit abrupt -- you could just spam click and the sound effect would keep cutting in and out. Would be good to have a build-up state to the full flame jet, where it fades in the sound and the flames increase in size until they match the normal flames. The flame jet collision also seemed to be a little iffy at times.
The background was pretty hard to see, particularly on the web player.