• This is the first episode to feature punctuation in the title (aside from hyphens).
  • This is the shortest episode title to date.
  • This is the first episode with Farmer Yumi featured on the title card (albeit in a martial arts outfit).
    • Despite only being seen in the martial arts uniform, she is still referred to as "Farmer Yumi" throughout the episode.
    • Marshall is also featured in a martial arts uniform and in a pose on the title card.
  • Rocky's martial arts uniform is the only one to include his pup pack (notably by holding a bo-staff using pincers).
  • The pups respond to the call to action in their martial arts uniforms in place of their usual vests.
    • When called upon, Marshall says "My highly-trained paws are at your service" instead of his typical callout, "I'm fired up!".
  • The first successful tailspin of the series is performed (by Marshall).
  • This is the one of few times a feline has made sounds that can be interpreted as human speech (Cat Chase meows, "Who, me?" when accused by Ryder).
  • The martial arts scroll has been in Farmer Yumi's family for hundreds of years, and she had inherited it from her grandfather.
  • The town of Foggy Bottom is seen for the first time, and it is appropriately shrouded in fog.
  • It is revealed that Mayor Humdinger has a secret lair in Foggy Bottom, and cameras to spy on events in Adventure Bay.
  • Marshall is awarded a golden belt for his special dedication and bravery in the recovery of the scroll.
  • "Pup-Fu" is a parody of kung fu.
  • The catchphrase "quiet as a mouse" is said 10 times within the episode (9 times by Marshall, once by Farmer Yumi).
  • Mayor Humdinger's line "Drat you Ryder and your meddling pups!" is similar to the classic line from Scooby-Doo.
  • The Hen-kido headbands worn by Mayor Goodway and Chickaletta are blurred in KBS Kids broadcasts and are fully whitened in Nickelodeon (South Korea) broadcasts due to its resemblance to the flag of the Japanese army.
  • The martial arts they practiced is based on real martial arts for the pups (Kung-Fu), the Kitten Catastrophe Crew (Jiu-Jitsu) and Chickaletta (Aikido).