I got this game as part of round 3 for the IGMC. First, congrats on getting this far in the contest! Here are my thoughts on the game.
Overall it is a neat idea for a game and a neat premise. I've played a few games about society down below ground but it is an idea that is not commonly used. I did lose the person I was supposed to follow a couple of times, maybe have them walk just a little slower so I have enough time to register which way they went? Running through that dungeon once when it is safe was a neat way to show off what kind of puzzles they will have.
However then I hit a critical problem. You see, the game never told me how to save ever. X didn't work for a menu as you have it assigned to throwing knives. So when things got dangerous, I died, and got kicked back to title. You really need to be sure to tell the player how to save in the game, or consider a system like the first Zelda where on death you can restart at start of dungeon or something. Unfortunately since I never knew how to save in this game I never got past the boss in the hour I had as I had to spend most of my time replaying the same segments over and over.
With a fix to the save issue, or some kind of autosave though this game would be a really good game I feel. Hopefully you can consider adding that later on.