Trivia
- The episode's title is a play on the song Happy Birthday.
- The video game Dudley plays is a parody of Pac-Man.
- The Chief is playing Solitaire on his computer.
- 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 calendar) 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.
Running Gags
- Objects (usually blimps) announcing Dudley's birthday.
- Dudley mentions that he wants a jet ski for his birthday.
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| << Season 1 | ♦ Season 2 Trivia ♦ | Season 3 >> | |||||||||||||
| #01 | A Doomed Christmas | #12 | Pup Daddy | #23 | Golden Retriever | #34 | Bark to Nature | ||||||||
| #02 | Big Dog on Campus | #13 | Candy Cane-ine | #24 | Rat Trap | #35 | Mutts and Bolts | ||||||||
| #03 | Dog's Best Friend | #14 | Freaky Spy-Day | #25 | Agent of the Year | #36 | Carbon Copies | ||||||||
| #04 | Dudley Do-Wrong | #15 | Dog Tired | #26 | T.U.F.F. Choices | #37 | TUFF Cookies | ||||||||
| #05 | Puppy Unplugged | #16 | Dog House | #27 | Sob Story | ||||||||||
| #06 | Top Dog | #17 | Time Waits for No Mutt | #28 | Hush Puppy | ||||||||||
| #07 | Quack in the Box | #18 | Love Bird | #29 | Quacky Birthday | ||||||||||
| #08 | Monkey Business | #19 | Bluff Puppy | #30 | Happy Howl-O-Ween | ||||||||||
| #09 | Diary of a Mad Cat | #20 | Bark to the Future | #31 | 'Til Doom Do Us Part | ||||||||||
| #10 | Lie Like a Dog | #21 | Lights, Camera, Quacktion | #32 | Barking Tall | ||||||||||
| #11 | Cold Fish | #22 | Close Encounters of the Doomed Kind | #33 | Bad Eggs | ||||||||||