Too quick
Everything here seems to be happening too quickly. The avalanche moves too quickly, you run too quickly, the fuel runs out too quickly. Can't really say I had too much fun playing this. Another problem is that the character could get stuck in the tunnels. I'd advise making him smaller while leaving the flames the same size, if not bigger. Well done with the engine though. I'm no coder, but I can tell that this is a bit more complex than the ususal platformer fare.