The title of the episode is the same as the title in one of the levels in the video game Breakin' Da Rules.
Innuendo: Anti-Neptunia invites Timmy to go to the janitor's closet in school while disguised as Trixie in order to give him bad luck.
Danny Phantom - The title card is a reference to Dark Danny killing his former human self in the Danny Phantom episode "The Ultimate Enemy". Also, during the beginning of the battle with Anti-Neptunia, she states that she wants to be the most beautiful which made Neptunia say to her that even she can't believe that her counterpart wants to look beautiful, making Anti-Neptunia respond, "Now that just plain hurts", similar to Danny's fight with Skulker in "Girls' Night Out".
Aladdin - In the middle of Timmy and Ivan's battle with Anti-Neptunia, after calling her a cowardly snake, she turned into a giant snake and attack the heroes, referencing Aladdin's battle against Jafar.
The Jungle Book - While in her giant snake form, Anti-Neptunia used her hypnotic powers Timmy and Ivan and said "Trust in me", similar to how Kaa hypnotized Mowgli, except Anti-Neptunia wasn't going to devour Ivan and Timmy.