Having death improve your senses and even give you the ability to read is a cool mechanic. Checkpoints would have been nice. Although it was cool to see the opening areas in better detail after a few deaths, it did get a little tedious having to go back through them again if you made a mistake, and some of those wrong paths really let you go a long way before you hit a dead end. Kinda cool to have them clearly marked once your eyes clear enough to read, though. Not bad.