Perry the Platypus is the secret-agent pet from Disney's Phineas and Ferb, which first aired in 2007. In the Dutch version he is called Perry het Vogelbekdier, and his short musical cue has become a familiar shorthand for his double life. Fans share the clip on soundboards and in edits because the tune is instantly recognisable even without the lyrics. It still works years later because the joke is visual and musical at once: a quiet, ordinary pet suddenly becomes a confident agent.