Very unique! I like that the kind of "choose your own adventure" style that comes with using different guns more often. Seeing survival horror mixed with a visual novel was a fun combination! I also really like the art style; the 3D depth with the really nice pixel art was visually appealing.
That said, I think one way that the game could improve is with the balancing of the different guns. I mostly defaulted to the shotgun and the rifle, swapping between them quickly to instantly reload. I found that the shotgun was the easiest to spam using this trick, and because of it I hardly used the pistol. Also, I think that the game could use a little more music during the gameplay sections.
Overall, though, I had a fun time playing it! I can tell a lot of creativity went into it!