Parasite Eve (video game)/Nightmare Fuel

The series is more or less chock full of it. Here's some of the really horrifying bits:
 * The mutation sequences. Normal animals transform into ravenous beasts of war, usually by way of forcing their bodies out of their skin and splitting their skulls open. Not just from this game, but from all games. The dog from the first game and the young woman at the Akropolis Diner in the second game come to mind. In the first case, the poor thing's head graphically splits in three. The young woman's mutation starts off relatively tame, but then her eyes turn red, her hair falls off, and her mouth rips in two.
 * The opening scene at Carnegie Hall.
 * Anyone who combusted in the movie, especially the Nurse. Watching someone being set on fire isn't plesant, especially for what seems to be the longest minute of your life.
 * The scene with Eve at Central Park. The effects may have aged, but seeing all those people graphically melt into orange goo, with their bones showing, is still scary to this day.
 * The scene in the Rehearsal Room with Melissa. Especially since it's heavily implied that this is the exact moment that Eve took over Melissa totally and completely, killing her in the process.
 * Fighter jets getting blasted by the giant orange mass. For that matter, Eve turning one of the pilots into goo.
 * The chasers in Parasite Eve 2. Those eyes...
 * Right near the start of the second game, the girl in the Akropolis' diner.
 * The animal testing labs in the Shelter.
 * The Apocalyptic Log you find in said animal testing lab.
 * The final boss in the 2, especially its screaming/crying turning into horrible laughter at the start of the fight.