Don't look BACK! I like the idea you were going for and it fits the theme nicely. I did get a bit disorientated with the sudden change to black with the vision, nut that could be a ME problem
The animations did need a bit of polishing and the sound effects require a bit more variety. The game did feel a bit laggy at times. Other than that, like the death animation and the tense moment when I have no idea where I am when moving. Great work. Happy Game Deving!