Is seeing ice supposed to, well, freeze the game? It's thematic, but it's also kind of annoying to have to reset the level every time you accidentally look at ice.
Also, while I was edging my way south down the fire while facing east, I kept dying--I guess a fountain just slipped out of my line of sight? Even though I was still facing a row of them? I think this a cool concept, but I worry that what exactly counts as "within the field of vision" is too fiddly.