The little secret places you can find ammo were a nice touch, I felt properly curious about looking around corners after the initial ammo I found during the tutorial area. The tutorial text was also well done; I just did a giant wall of text for mine, lol. Although, some of them were a bit close; due to my speed I'd walk right into them before they appear then I'd have to back up a bit (small UX nitpick).
I would have liked to have seen a little more polish with enemies taking damage, such as a hit sound or particles, etc. I feel the shotgun should have taken longer to reload and then done more damage to balance. It felt more like a pellet gun.
Unironically gorgeous graphics. You really nailed the retro horror game look in my opinion. Sound was good too, the theme music and low bitrate grunts fit perfectly.
Cool submission.