Sure thing dev.
Options like the volume main music of the game, sound effecs, graphic settings, and other options like sensitivity if you want to.
Menu like a scary background (or any background that can build tension), your name at the side like "this game was made by Ultimate, and that selections tab in the menu like options, new game, load game, credits and other stuff.
Any how dev you say it's a demo right? Well tell me if your done with your game ok :). Take your time no pressure, because this game reminds of my 1st horror game that I played could "Incoming Evil". Any how good luck dev and stay safe from the corona virus.
