Shingeki no Kyojin/YMMV


 * Narm - There are the Titans that aren't quite disturbing enough and come off as as giant wobbly nudists smiling like they're stoned out of their minds.
 * And then you see them grotesquely devouring any human they can get heir hands on, at which point the Narm kinda loses out to good old Primal Fear.
 * Nightmare Fuel Even normal Titans are ridiculously scary with their unsettling appearances and the author eagerly showing characters getting eaten by them.