Well-done platformer with two neat twists (limited visibility and platform destruction), both of which are thematically linked to your character being a flame. Good idea, good implementation. I also like the chill soundtrack. Also, kudos for the forgiving jumps and the clear signaling of how close a platform is to destruction.
One thing that would definitely help the enjoyment of the game would be checkpoints, because it's not that much fun to have to repeatedly traverse the same ground. This is especially the case with a limited-visibility game, where the player needs to experiment, and some experiments will lead to fatal falls. (If you *did* implement checkpoints, I didn't get far enough to notice.)