Tattletail / Nightmare Fuel - TV Tropes

The loading-screen music before each Night, which basically tells you, "Get ready to run." And it sounds similar to the also-unsettling "Flight of the Zinger" from Donkey Kong Country 2: Diddy

Nightmare Fuel Station Attendant - TV Tropes

Video Games / Nightmare Fuel - TV Tropes

Nausea Fuel - All The Tropes

Nightmare Fuel Station Attendant - TV Tropes

Undertale / Nightmare Fuel - TV Tropes

Team Fortress 2 / Nightmare Fuel - TV Tropes

Cheshire Cat Grin - TV Tropes

Undertale / Nightmare Fuel - TV Tropes

Helluva Boss / Nightmare Fuel - TV Tropes

Undertale / Nightmare Fuel - TV Tropes