Enter the "data\scripts\menus\english" subdirectory in the directory where the game was installed. Rename "release.msc" to "release.ms1". Then rename "debug.msc".to "release.msc". Load the game to access a cheat menu with invulnerability, infinite ammo, level select, all weapons, all items, and other options.
Go up to Nettie and, after she tells a story of your journey or fate, approach and shoot her. To see her bleed, press SNIPE then look down at the bottom part of her clothing. You will see a sprinkle of blood coming out of her.