So:
1) You put the "instantly kill myself" button (K) right next to the "fire gun" button (J),
2) You gave the railgun limited ammo, but not an ammo counter, nor do you tell the player this until after they've gotten the first upgrade,
3) Can't hit "esc" to exit fullscreen,
4) You made it double-tap back to turn around, which would make sense... except that you can't fire while backing up,
5) Every action takes so, so long,
6) You expect people to pay $2.00 for this.
This game is less "horror" and more "horrible."
Shame, because it's a cool idea.