Light Up the Galaxy☆ Cure Cosmo is Born! is the 20th episode of Star★Twinkle Pretty Cure, and the 753rd episode overall of Pretty Cure.
The Cures pursue Blue Cat after she steals both Fuwa and the Color Pens.
Tropes:
- Growling Gut: Fuwa gets one when she gets hungry.
- Heel–Face Turn: After her backstory is revealed and the Cures defend her, Blue Cat/Yuni turns over to the Cures' side, and becomes...
- Pink Means Feminine: Cure Cosmo gets pink streaks in her hair when she transforms. She is the third blue Cure to have a hair colour other than blue, after Cure Beat and Cure Windy, who both had purple hair.
- The Sixth Ranger: Yuni becomes the fifth Cure, Cure Cosmo.
