: Instead of enhancing him, the machine extracts all of Stewie's residual evil and concentrates it into an aggressive, physical clone with inverted clothing colors.
: Meg begins wearing Bonnie's dresses and referring to Joe by his first name. When she learns Bonnie is returning, Meg steals Joe's gun and frames Bonnie by planting it in her luggage at the airport.
: Lois pawns the caretaking duties off on Meg. Because Joe is genuinely kind to her and doesn't mind being seen with her, Meg quickly becomes infatuated and misreads his politeness as romantic interest.
: The split of Stewie into a docile side and a purely evil side heavily mimics the classic Star Trek episode "The Enemy Within" , complete with the original dramatic score.