Great presentation. The player character animation is really cool, and the backgrounds are atmospheric and interesting. Reminds me a bit of Flashback, or Fade to Black. The sound is also nice and the controls are pretty smooth.
However, the project is clearly unfinished. If I fall into a pit, I have no way to get out. If I fall into the lava, I have no way to get out, but I don't die, either (there doesn't appear to be a fail state programmed yet). I found myself unable to continue the game, and had to reload the page several times.