In the live-action film Pokémon Detective Pikachu, the character Jigglypuff appears as a recognizable figure from the Pokémon world, though with a unique design and role tailored for this specific story. In terms of its background, this Jigglypuff is depicted as a small, round, pink Pokémon with large blue eyes and a characteristic curled tuft of hair on its forehead. Unlike its often smooth-skinned appearance in the video games and much of the anime, the film gives Jigglypuff a textured, fur-like coat, which the creative team developed after significant experimentation, at one point comparing its skin to pigskin before settling on a groomed, furry ball shape. This version of Jigglypuff works as a lounge singer in a bar, a setting that perfectly frames its personality and motivations.

The personality of this Jigglypuff is directly inspired by its most famous running gag from the long-running Pokémon animated series. It is characterized by a deep-seated need for an audience and a volatile temper when that need is not met. Its primary motivation is to perform its signature lullaby and receive undivided, awake attention. However, its singing voice is so soothing that it inevitably lulls any listener, including an entire bar full of patrons, to sleep. This failure to keep an audience conscious frustrates the Pokémon greatly. In response, Jigglypuff’s role in the story is largely a cameo that serves as a loving reference for long-time fans, showcasing this classic behavioral loop. It takes to the stage with a microphone that is also a marker, sings its song, and upon discovering its listeners have succumbed to slumber, becomes disgruntled and draws on their faces as an act of revenge for being ignored. This depiction directly references the anime’s long-running joke, solidifying its role as a faithful adaptation of that character’s essence.

The film does not develop key relationships for this Jigglypuff, as it appears as a standalone obstacle or comic encounter for the protagonists, Tim Goodman and Detective Pikachu, rather than a character with personal connections. Its primary relationship is with its audience, which is one of performer to spectator that always ends in failure. Development is similarly minimal, as the character does not undergo a significant arc or change throughout the film; instead, it serves as a static but memorable cameo that embodies a single, well-known trait. Regarding notable abilities, Jigglypuff possesses a hypnotic singing voice that can instantly put any human or Pokémon that hears it into a deep sleep. As a Fairy-type Pokémon, it also has access to moves such as Healing Melody, which can restore the health of other Pokémon. However, in the context of Detective Pikachu, its most prominently displayed ability is its song, which it wields more as an unintentional weapon than a performance tool. Its secondary ability is its tendency to deface its sleeping audience using its dual-purpose microphone marker.