Nightmare Fuel / Maniac Mansion

  • The things Nurse Edna says when she catches a male character are just downright creepy. And whatever you do, for the love of God don't play the Tentacle Mating Calls record around the Green Tentacle. All these things are edited in the NES version due to censors though.
  • Every time the reactor is about to self-destruct. Tense music, a race against time, and a nuclear explosion destroying everything within a 5 mile radius if you fail.
http://tvtropes.org/pmwiki/pmwiki.php/NightmareFuel/ManiacMansion