• This episode was premiered in Latin America on March 21 before the U.S.
  • The episode's title is a play on the song Happy Birthday.
  • This is the second episode that involves a birthday party. The first was Operation: Happy Birthday.
  • This is the second time that The Chief hates parties and gatherings. The first time was in Dog House.
  • The video game Dudley plays is a parody of Pac-Man.
  • The Chief is playing Solitaire on his computer.
  • This is the first time an episode ends with one of the characters singing a song of public domain.
  • Dudley once broke the fourth wall when he told Kitty that the plot was complicated.
  • This is the first time Dudley is seen as a child. At that time, Dudley was present in a school play based on The Discovery of America in 1492, and he had the role of Christopher Columbus.
  • It is shown (according to the calender) that Dudley's birthday is on May 11th, and on that occasion, falls Thursday.
  • Duck E. Cheese is the second parody of Chuck E. Cheese's. The first being Pete-Za Possum Party Palace.
  • This is the first time that Dudley is seen as a kid on video.
  • Despite Dudley having a birthday party, the only people who showed up were Kitty, The Chief, Keswick, and some T.U.F.F. agents. No one he knew outside of T.U.F.F. showed up at the party.
  • The last time this episode (along with Hush Puppy) aired on the main Nickelodeon Channel is March 1, 2015.

Running Gags

  • Objects (usually blimps) announcing Dudley's birthday.
  • Dudley mentions that he wants a jet ski for his birthday.

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