Kamen Rider Kiva/Fridge

Fridge Brilliance

 * the finale may seem like a Shocking Swerve, until you realize that.
 * Kivat III started out with a fetish for beautiful necks. Normal behavior for a vampire bat, really.
 * Shima advising Megumi against taking on Rook by herself may be standard mentor behavior, but takes on added meaning in later eps when we learn that.
 * Ever noticed how the "organic" Riders require members of two different races in symbiosis (bats or whatever Sagarc is, with humans or Fangire or anything in between)? Kiva Emperor Form has a major advantage in three races in one, and Wataru could even be considered two races at the same time, which lends added meaning to the "Emperor" name, since an empire is formed by colonising and subjugating other countries with unified rule. Four Is Death indeed.