Fantastic game, I really love it.
The Animations with the flames are really ambitious (especially the trail when you move). The sound design is actually smarter than I first realized. And even some twisty story.
You explore the mechanic really well, starting off to show the easy cases and then move on to really show how deep some of the parts gets, without starting to introduce more mehcanics or anything.
Simple, interesting, clean. Well done!