I like this game. You do a lot with the low poly look - the music/sound works with that. I, too, didn't understand that I needed to stock the ladders/ropes at first. And, I'm not entirely sure why that's part of the puzzle. The stamina piece reminds me of a very old blast from the past Cavequest, though it was used differently. I like the story that explains why the need to conserve energy.