During Halloween Horror Nights (HHN) at Universal Studios Hollywood, select high-profile attractions remain open to provide guests with a break from the scare zones and haunted houses. While the lineup can vary slightly, the 2025–2026 season typically includes Jurassic World – The Ride, Transformers: The Ride-3D, Revenge of the Mummy – The Ride, and The Simpsons Ride. A major highlight is the Terror Tram, which transforms the daytime Studio Tour into a walk-through nightmare experience. Harry Potter and the Forbidden Journey and Flight of the Hippogriff are also usually open, often featuring "Death Eaters" roaming Hogsmeade. It is important to note that Super Nintendo World and its flagship ride, Mario Kart: Bowser’s Challenge, are sometimes excluded from standard HHN admission or require a separate add-on, so always check the specific "Stay & Scream" or HHN event map upon arrival.