Nightmare Fuel / Blood Raining Night

• That Minna gets amnesia by simply watching an animated series for children is pretty scary.
• The "divine punishment" Reicheru must undergo in order to find her daughter: first she must get stabbed in the eyes, then get her arms torn off. What's worse is that her friends just calmly carry these horrific, explicitly described tortures out on her. Eesh.
• The fanime shows the audience the incident that caused Lucy to lose her horns. The shoddy art combined with the bizarre and uncomfortable sexual subtext and the creepy music ^note a Vocaloid song used without crediting the original author makes the whole thing unsettling.