This is a great game and especially extraordinary for a game jam. Really impressive, good job and good luck!!!
Some feedback:
I love how you can't move, that makes this game unique as well as the color scheme and the vibrancy.
As with almost any game I have played in this jam, I would love to see this game implementing a local and a global leader board. Right now the game isn't very competitive and I think that with a leader board people would try to compete to get their names on their!
Another thing I was thinking about was how FreezDev was looking for your game. Freeze forgot the name of your game and I think this was largely due to the fact that your game doesn't have a cover image. A cover image would make the game easy to find and be memorable.
Another small thing that you can do is fix the clamps on the camera. right now you are able to look through your body and its kinda weird. Maybe you can just lessen the angle at which you can look through.
I understand that you are trying to make this game hard from not giving clues when people sneak up on you, but after a while it got annoying. Maybe, almost right before the enemy is behind you or something play a tone like tun tun or something. I think it will keep the intergerty of the game and hardly change anything because it would be really hard to react to it anyways while still alerting the user. Maybe this could be 3d sound and you could tell where it is coming from?
I also think that when you die and the starting UI is a bit clunky. Not to say that each individual part looks great, but I think that it should be lessened a bit. Another thing to note is that it looks GREAT IN FULL SCREEN MODE. I think the easiest solution to this is to probably make is so that it is scaled based on the size of the screen. Their is a way to do this, I think its something like "Maintain Aspect Ratio"