I liked that one! The "gun"-play isn't tremendously deep, but it is a cool take on schizophrenia, both the presence of incorporeal things haunting you and hunting you down, and the coping mechanism of willing a weapon and ammo into existence. The animation and SFX on shooting, reloading and generating ammo are great and I think there is actually a lot of potential to expand this with i.e. dual-wielding your hands or using similar copes.
One thing I found a little too harsh was the fact, so many eyes sneak up from behind. I could easily clear my field of view, but they would get me from behind and since I am pretty sure ghostly eyes can't actually hurt me physically, they shouldn't spawn and act when I am not even looking their way. Maybe take some inspiration from SuperHot and make them only move when I move (or rather when they are in view), while spawning in view, so there's a constant pressure, but the player doesn't get overwhelmed as quickly.
Other than that I liked it a lot, nice visuals, the posterization was effective, I only felt like those levels could benefit from a few more 3D assets.