Ep. 12: Momo Becomes a Phantom Thief to Stop Lupin's Son from Stealing
Aired on June 3, 1982

The son of the renowned Phantom Thief Lupin arrives in Momo with a specific plea for assistance. He asks Momo to intervene and persuade his father to cease his thieving activities. In response to this request, Momo adopts the persona of a phantom thief herself. Her goal is to surpass Lupin and demonstrate her own capabilities in the field. This decision initiates a significant and intense rivalry between the two characters. The narrative focuses on this confrontation as they engage in a high-stakes competition to outdo one another. The story highlights the dynamic between the son's desire for change and Momo's determination to prove herself through direct action.
Episodes
- Ep. 8 · Momo receives her first love letter and transforms into a policewoman to meet her secret admirer.
- Ep. 9 · Mack Kallent aims for the Dream Music Festival with Momo's help against Ganar
- Ep. 10 · Momo attempts to rescue the complaining Madame Sarah during a neighborhood outing
- Ep. 11 · Momo attempts to reunite star-crossed kitties Harry and Rosemary despite complications.
- Ep. 12 · Momo Becomes a Phantom Thief to Stop Lupin's Son from Stealing
- Ep. 13 · Ram the soccer-loving heir faces his tutor while Momo acts to rescue him from studying.
- Ep. 14 · Walder Itaducky targets a car repair shop while Momo races to save the day
- Ep. 15 · Sabotaged brakes send an old-fashioned train hurtling toward disaster as Momo attempts a rescue.
- Ep. 16 · Minky Momo visits San Francisco and meets Princeton after Western dreams fade